DMARC: default dmarc_tld_file to unset. Bug 2494
[exim.git] / doc / doc-txt / ChangeLog
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1This document describes *changes* to previous versions, that might
2affect Exim's operation, with an unchanged configuration file. For new
3options, and new features, see the NewStuff file next to this ChangeLog.
495ae4b0 4
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6Exim version 4.94
7-----------------
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8
9JH/01 Avoid costly startup code when not strictly needed. This reduces time
10 for some exim process initialisations. It does mean that the logging
11 of TLS configuration problems is only done for the daemon startup.
12
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13JH/02 Early-pipelining support code is now included unless disabled in Makefile.
14
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15JH/03 DKIM verification defaults no long accept sha1 hashes, to conform to
16 RFC 8301. They can still be enabled, using the dkim_verify_hashes main
17 option.
18
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19JH/04 Support CHUNKING from an smtp transport using a transport_filter, when
20 DKIM signing is being done. Previously a transport_filter would always
21 disable CHUNKING, falling back to traditional DATA.
22
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23JH/05 Regard command-line receipients as tainted.
24
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25JH/06 Bug 340: Remove the daemon pid file on exit, whe due to SIGTERM.
26
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27JH/07 Bug 2489: Fix crash in the "pam" expansion condition. It seems that the
28 PAM library frees one of the arguments given to it, despite the
29 documentation. Therefore a plain malloc must be used.
30
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31JH/08 Bug 2491: Use tainted buffers for the transport smtp context. Previously
32 on-stack buffers were used, resulting in a taint trap when DSN information
33 copied from a received message was written into the buffer.
34
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35JH/09 Bug 2493: Harden ARC verify against Outlook, whick has been seen to mix
36 the ordering of its ARC headers. This caused a crash.
37
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38JH/10 Bug 2492: Use tainted memory for retry record when needed. Previously when
39 a new record was being constructed with information from the peer, a trap
40 was taken.
41
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42JH/11 Bug 2494: Unset the default for dmarc_tld_file. Previously a naiive
43 installation would get error messages from DMARC verify, when it hit the
44 nonexistent file indicated by the default. Distros wanting DMARC enabled
45 should both provide the file and set the option.
46 Also enforce no DMARC verification for command-line sourced messages.
47
d85cdeb5 48
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49Exim version 4.93
50-----------------
51
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52JH/01 OpenSSL: With debug enabled output keying information sufficient, server
53 side, to decode a TLS 1.3 packet capture.
40ed89b3 54
fc243e94 55JH/02 OpenSSL: Suppress the sending of (stateful) TLS1.3 session tickets.
d7f31bb6
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56 Previously the default library behaviour applied, sending two, each in
57 its own TCP segment.
58
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59JH/03 Debug output for ACL now gives the config file name and line number for
60 each verb.
61
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62JH/04 The default received_header_text now uses the RFC 8314 tls cipher clause.
63
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64JH/05 DKIM: ensure that dkim_domain elements are lowercased before use.
65
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66JH/06 Fix buggy handling of autoreply bounce_return_size_limit, and a possible
67 buffer overrun for (non-chunking) other transports.
68
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69JH/07 GnuTLS: Our use of late (post-handshake) certificate verification, under
70 TLS1.3, means that a server rejecting a client certificate is not visible
71 to the client until the first read of encrypted data (typically the
72 response to EHLO). Add detection for that case and treat it as a failed
73 TLS connection attempt, so that the normal retry-in-clear can work (if
74 suitably configured).
75
c05bdbd6 76JB/01 Bug 2375: fix expansions of 822 addresses having comments in local-part
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77 and/or domain. Found and fixed by Jason Betts.
78
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79JH/08 Add hardening against SRV & TLSA lookups the hit CNAMEs (a nonvalid
80 configuration). If a CNAME target was not a wellformed name pattern, a
81 crash could result.
82
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83JH/09 Logging: Fix initial listening-on line for multiple ports for an IP when
84 the OS reports them interleaved with other addresses.
85
c09dbcfb
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86JH/10 OpenSSL: Fix aggregation of messages. Previously, when PIPELINING was
87 used both for input and for a verify callout, both encrypted, SMTP
88 responses being sent by the server could be lost. This resulted in
89 dropped connections and sometimes bounces generated by a peer sending
90 to this system.
254f38d1 91
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92JH/11 Harden plaintext authenticator against a badly misconfigured client-send
93 string. Previously it was possible to cause undefined behaviour in a
94 library routine (usually a crash). Found by "zerons".
95
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96JH/12 Bug 2384: fix "-bP smtp_receive_timeout". Previously it returned no
97 output.
98
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99JH/13 Bug 2386: Fix builds with Dane under LibreSSL 2.9.0 onward. Some old
100 API was removed, so update to use the newer ones.
101
3c55eef2 102JH/14 Bug 1891: Close the log file if receiving a non-smtp message, without
00c0dd4e 103 any timeout set, is taking a long time. Previously we would hang on to a
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104 rotated logfile "forever" if the input was arriving with long gaps
105 (a previous attempt to fix addressed lack, for a long time, of initial
106 input).
107
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108HS/01 Bug 2390: Use message_id for tempfile creation to avoid races in a
109 shared (NFS) environment. The length of the tempfile name is now
110 4 + 16 ("hdr.$message_exim_id") which might break on file
111 systems which restrict the file name length to lower values.
112 (It was "hdr.$pid".)
113
7d8d08c4 114HS/02 Bug 2390: Use message_id for tempfile creation to avoid races in a
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115 shared (NFS) environment.
116
7d8d08c4 117HS/03 Bug 2392: exigrep does case sensitive *option* processing (as it
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118 did for all versions <4.90). Notably -M, -m, --invert, -I may be
119 affected.
120
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121JH/15 Use unsigned when creating bitmasks in macros, to avoid build errors
122 on some platforms for bit 31.
123
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124JH/16 GnuTLS: rework ciphersuite strings under recent library versions. Thanks
125 to changes apparently associated with TLS1.3 handling some of the APIs
126 previously used were either nonfunctional or inappropriate. Strings
127 like TLS1.3:ECDHE_SECP256R1__RSA_PSS_RSAE_SHA256__AES_256_GCM__AEAD:256
128 and TLS1.2:ECDHE_SECP256R1__RSA_SHA256__AES_128_CBC__SHA256:128 replace
129 the previous TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256 .
130 This affects log line X= elements, the $tls_{in,out}_cipher variables,
131 and the use of specific cipher names in the encrypted= ACL condition.
132
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133JH/17 OpenSSL: the default openssl_options now disables ssl_v3.
134
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135JH/18 GnuTLS: fix $tls_out_ocsp under hosts_request_ocsp. Previously the
136 verification result was not updated unless hosts_require_ocsp applied.
137
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138JH/19 Bug 2398: fix listing of a named-queue. Previously, even with the option
139 queue_list_requires_admin set to false, non-admin users were denied the
140 facility.
141
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142JH/20 Bug 2389: fix server advertising of usable certificates, under GnuTLS in
143 directory-of-certs mode. Previously they were advertised despite the
144 documentation.
145
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146JH/21 The smtp transport option "hosts_noproxy_tls" is now unset by default.
147 A single TCP connection by a client will now hold a TLS connection open
148 for multiple message deliveries, by default. Previoud the default was to
149 not do so.
150
59c0959a 151JH/22 The smtp transport option "hosts_try_dane" now enables all hosts by
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152 default. If built with the facility, DANE will be used. The facility
153 SUPPORT_DANE is now enabled in the prototype build Makefile "EDITME".
154
155JH/23 The build default is now for TLS to be included; the SUPPORT_TLS define
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156 is replaced with DISABLE_TLS. Either USE_GNUTLS or (the new) USE_OPENSSL
157 must be defined and you must still, unless you define DISABLE_TLS, manage
158 the the include-dir and library-file requirements that go with that
159 choice. Non-TLS builds are still supported.
59c0959a 160
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161JH/24 Fix duplicated logging of peer name/address, on a transport connection-
162 reject under TFO.
96eb7d2a 163
efad2f41 164JH/25 The smtp transport option "hosts_try_fastopen" now enables all hosts by
4e48d56c 165 default. If the platform supports and has the facility enabled, it will
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166 be requested on all coneections.
167
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168JH/26 The PIPE_CONNECT facility is promoted from experimental status and is now
169 controlled by the build-time option SUPPORT_PIPE_CONNECT.
170
6ee11061 171PP/01 Unbreak heimdal_gssapi, broken in 4.92.
0a5441fc 172
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173JH/27 Bug 2404: Use the main-section configuration option "dsn_from" for
174 success-DSN messages. Previously the From: header was always the default
175 one for these; the option was ignored.
6ee11061 176
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177JH/28 Fix the timeout on smtp response to apply to the whole response.
178 Previously it was reset for every read, so a teergrubing peer sending
179 single bytes within the time limit could extend the connection for a
180 long time. Credit to Qualsys Security Advisory Team for the discovery.
181
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182JH/29 Fix DSN Final-Recipient: field. Previously it was the post-routing
183 delivery address, which leaked information of the results of local
184 forwarding. Change to the original envelope recipient address, per
185 standards.
186
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187JH/30 Bug 2411: Fix DSN generation when RFC 3461 failure notification is
188 requested. Previously not bounce was generated and a log entry of
189 error ignored was made.
190
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191JH/31 Avoid re-expansion in ${sort } expansion. (CVE-2019-13917)
192
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193JH/32 Introduce a general tainting mechanism for values read from the input
194 channel, and values derived from them. Refuse to expand any tainted
195 values, to catch one form of exploit.
196
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197JH/33 Bug 2413: Fix dkim_strict option. Previously the expansion result
198 was unused and the unexpanded text used for the test. Found and
199 fixed by Ruben Jenster.
200
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201JH/34 Fix crash after TLS shutdown. When the TCP/SMTP channel was left open,
202 an attempt to use a TLS library read routine dereffed a nul pointer,
203 causing a segfault.
204
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205JH/35 Bug 2409: filter out-of-spec chars from callout response before using
206 them in our smtp response.
207
9c6881f8 208JH/36 Have the general router option retry_use_local_part default to true when
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209 any of the restrictive preconditions are set (to anything). Previously it
210 was only for check_local user. The change removes one item of manual
211 configuration which is required for proper retries when a remote router
212 handles a subset of addresses for a domain.
213
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214JH/37 Appendfile: when evaluating quota use (non-quota_size_regex) take the file
215 link count into consideration.
216
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217HS/04 Fix handling of very log lines in -H files. If a -<key> <value> line
218 caused the extension of big_buffer, the following lines were ignored.
219
220JH/38 Bug 1395: Teach the DNS negative-cache about TTL value from the SOA in
221 accordance with RFC 2308. Previously there was no expiry, so a longlived
222 receive process (eg. due to ACL delays) versus a short SOA value could
223 surprise.
224
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225HS/05 Handle trailing backslash gracefully. (CVE-2019-15846)
226
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227JH/39 Promote DMARC support to mainline.
228
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229JH/40 Bug 2452: Add a References: header to DSNs.
230
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231JH/41 With GnuTLS 3.6.0 (and later) do not attempt to manage Diffie-Hellman
232 parameters. The relevant library call is documented as "Deprecated: This
233 function is unnecessary and discouraged on GnuTLS 3.6.0 or later. Since
234 3.6.0, DH parameters are negotiated following RFC7919."
235
ab0e957b 236HS/06 Change the default of dnssec_request_domains to "*"
40ed89b3 237
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238JH/42 Bug 2545: Fix CHUNKING for all RCPT commands rejected. Previously we
239 carried on and emitted a BDAT command, even when PIPELINING was not
240 active.
241
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242JH/43 Bug 2465: Fix taint-handling in dsearch lookup. Previously a nontainted
243 buffer was used for the filename, resulting in a trap when tainted
244 arguments (eg. $domain) were used.
245
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246JH/44 With OpenSSL 1.1.1 (onwards) disable renegotiation for TLS1.2 and below;
247 recommended to avoid a possible server-load attack. The feature can be
248 re-enabled via the openssl_options main cofiguration option.
249
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250JH/45 local_scan API: documented the current smtp_printf() call. This changed
251 for version 4.90 - adding a "more data" boolean to the arguments.
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252 Bumped the ABI version number also, this having been missed previously;
253 release versions 4.90 to 4.92.3 inclusive were effectively broken in
254 respect of usage of smtp_printf() by either local_scan code or libraries
255 accessed via the ${dlfunc } expansion item. Both will need coding
256 adjustment for any calls to smtp_printf() to match the new function
257 signature; a FALSE value for the new argument is always safe.
b2d54f83 258
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259JH/46 FreeBSD: fix use of the sendfile() syscall. The shim was not updating
260 the file-offset (which the Linux syscall does, and exim expects); this
261 resulted in an indefinite loop.
262
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263JH/47 ARC: fix crash in signing, triggered when a configuration error failed
264 to do ARC verification. The Authentication-Results: header line added
265 by the configuration then had no ARC item.
266
c5040dfd 267
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268Exim version 4.92
269-----------------
270
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271JH/01 Remove code calling the customisable local_scan function, unless a new
272 definition "HAVE_LOCAL_SCAN=yes" is present in the Local/Makefile.
273
274JH/02 Bug 1007: Avoid doing logging from signal-handlers, as that can result in
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275 non-signal-safe functions being used.
276
277JH/03 Bug 2269: When presented with a received message having a stupidly large
278 number of DKIM-Signature headers, disable DKIM verification to avoid
279 a resource-consumption attack. The limit is set at twenty.
9723f966 280
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281JH/04 Add variables $arc_domains, $arc_oldest_pass for ARC verify. Fix the
282 report of oldest_pass in ${authres } in consequence, and separate out
283 some descriptions of reasons for verification fail.
284
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285JH/05 Bug 2273: Cutthrough delivery left a window where the received messsage
286 files in the spool were present and unlocked. A queue-runner could spot
287 them, resulting in a duplicate delivery. Fix that by doing the unlock
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288 after the unlink. Investigation by Tim Stewart. Take the opportunity to
289 add more error-checking on spoolfile handling while that code is being
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290 messed with.
291
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292PP/01 Refuse to open a spool data file (*-D) if it's a symlink.
293 No known attacks, no CVE, this is defensive hardening.
294
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295JH/06 Bug 2275: The MIME ACL unlocked the received message files early, and
296 a queue-runner could start a delivery while other operations were ongoing.
297 Cutthrough delivery was a common victim, resulting in duplicate delivery.
298 Found and investigated by Tim Stewart. Fix by using the open message data
299 file handle rather than opening another, and not locally closing it (which
300 releases a lock) for that case, while creating the temporary .eml format
301 file for the MIME ACL. Also applies to "regex" and "spam" ACL conditions.
302
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303JH/07 Bug 177: Make a random-recipient callout success visible in ACL, by setting
304 $sender_verify_failure/$recipient_verify_failure to "random".
305
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306JH/08 When generating a selfsigned cert, use serial number 1 since zero is not
307 legitimate.
308
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309JH/09 Bug 2274: Fix logging of cmdline args when starting in an unlinked cwd.
310 Previously this would segfault.
311
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312JH/10 Fix ARC signing for case when DKIM signing failed. Previously this would
313 segfault.
314
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315JH/11 Bug 2264: Exim now only follows CNAME chains one step by default. We'd
316 like zero, since the resolver should be doing this for us, But we need one
317 as a CNAME but no MX presence gets the CNAME returned; we need to check
318 that doesn't point to an MX to declare it "no MX returned" rather than
319 "error, loop". A new main option is added so the older capability of
320 following some limited number of chain links is maintained.
321
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322JH/12 Add client-ip info to non-pass iprev ${authres } lines.
323
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324JH/13 For receent Openssl versions (1.1 onward) use modern generic protocol
325 methods. These should support TLS 1.3; they arrived with TLS 1.3 and the
326 now-deprecated earlier definitions used only specified the range up to TLS
327 1.2 (in the older-version library docs).
328
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329JH/14 Bug 2284: Fix DKIM signing for body lines starting with a pair of dots.
330
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331JH/15 Rework TLS client-side context management. Stop using a global, and
332 explicitly pass a context around. This enables future use of TLS for
333 connections to service-daemons (eg. malware scanning) while a client smtp
334 connection is using TLS; with cutthrough connections this is quite likely.
335
5054c4fd 336JH/16 Fix ARC verification to do AS checks in reverse order.
611b1961
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337
338JH/17 Support a "tls" option on the ${readsocket } expansion item.
5054c4fd 339
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340JH/18 Bug 2287: Fix the protocol name (eg utf8esmtp) for multiple messages
341 using the SMTPUTF8 option on their MAIL FROM commands, in one connection.
342 Previously the "utf8" would be re-prepended for every additional message.
343
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344JH/19 Reject MAIL FROM commands with SMTPUTF8 when the facility was not advertised.
345 Previously thery were accepted, resulting in issues when attempting to
346 forward messages to a non-supporting MTA.
347
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348PP/02 Let -n work with printing macros too, not just options.
349
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350JH/20 Bug 2296: Fix cutthrough for >1 address redirection. Previously only
351 one parent address was copied, and bogus data was used at delivery-logging
352 time. Either a crash (after delivery) or bogus log data could result.
353 Discovery and analysis by Tim Stewart.
354
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355PP/03 Make ${utf8clean:} expansion operator detect incomplete final character.
356 Previously if the string ended mid-character, we did not insert the
357 promised '?' replacement.
358
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359PP/04 Documentation: current string operators work on bytes, not codepoints.
360
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361JH/21 Change as many as possible of the global flags into one-bit bitfields; these
362 should pack well giving a smaller memory footprint so better caching and
363 therefore performance. Group the declarations where this can't be done so
364 that the byte-sized flag variables are not interspersed among pointer
365 variables, giving a better chance of good packing by the compiler.
366
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367JH/22 Bug 1896: Fix the envelope from for DMARC forensic reports to be possibly
368 non-null, to avoid issues with sites running BATV. Previously reports were
369 sent with an empty envelope sender so looked like bounces.
370
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371JH/23 Bug 2318: Fix the noerror command within filters. It wasn't working.
372 The ignore_error flag wasn't being returned from the filter subprocess so
373 was not set for later routers. Investigation and fix by Matthias Kurz.
374
7ea1237c 375JH/24 Bug 2310: Raise a msg:fail:internal event for each undelivered recipient,
570cb1bd 376 and a msg:complete for the whole, when a message is manually removed using
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377 -Mrm. Developement by Matthias Kurz, hacked on by JH.
378
ebda598a
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379JH/25 Avoid fixed-size buffers for pathnames in DB access. This required using
380 a "Gnu special" function, asprintf() in the DB utility binary builds; I
381 hope that is portable enough.
382
570cb1bd
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383JH/26 Bug 2311: Fix DANE-TA verification under GnuTLS. Previously it was also
384 requiring a known-CA anchor certificate; make it now rely entirely on the
385 TLSA as an anchor. Checking the name on the leaf cert against the name
386 on the A-record for the host is still done for TA (but not for EE mode).
387
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388JH/27 Fix logging of proxy address. Previously, a pointless "PRX=[]:0" would be
389 included in delivery lines for non-proxied connections, when compiled with
390 SUPPORT_SOCKS and running with proxy logging enabled.
391
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392JH/28 Bug 2314: Fire msg:fail:delivery event even when error is being ignored.
393 Developement by Matthias Kurz, tweaked by JH. While in that bit of code,
394 move the existing event to fire before the normal logging of message
395 failure so that custom logging is bracketed by normal logging.
396
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397JH/29 Bug 2322: A "fail" command in a non-system filter (file) now fires the
398 msg:fail:internal event. Developement by Matthias Kurz.
399
75c121f0 400JH/30 Bug 2329: Increase buffer size used for dns lookup from 2k, which was
059f2ace 401 far too small for todays use of crypto signatures stored there. Go all
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402 the way to the max DNS message size of 64kB, even though this might be
403 overmuch for IOT constrained device use.
404
e30f4f43
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405JH/31 Fix a bad use of a copy function, which could be used to pointlessly
406 copy a string over itself. The library routine is documented as not
407 supporting overlapping copies, and on MacOS it actually raised a SIGABRT.
408
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409JH/32 For main options check_spool_space and check_inode_space, where the
410 platform supports 64b integers, support more than the previous 2^31 kB
411 (i.e. more than 2 TB). Accept E, P and T multipliers in addition to
412 the previous G, M, k.
413
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414JH/33 Bug 2338: Fix the cyrus-sasl authenticator to fill in the
415 $authenticated_fail_id variable on authentication failure. Previously
416 it was unset.
417
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418JH/34 Increase RSA keysize of autogen selfsign cert from 1024 to 2048. RHEL 8.0
419 OpenSSL didn't want to use such a weak key. Do for GnuTLS also, and for
420 more-modern GnuTLS move from GNUTLS_SEC_PARAM_LOW to
421 GNUTLS_SEC_PARAM_MEDIUM.
422
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423JH/35 OpenSSL: fail the handshake when SNI processing hits a problem, server
424 side. Previously we would continue as if no SNI had been received.
425
de6f74f2 426JH/36 Harden the handling of string-lists. When a list consisted of a sole
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427 "<" character, which should be a list-separator specification, we walked
428 off past the nul-terimation.
429
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430JH/37 Bug 2341: Send "message delayed" warning MDNs (restricted to external
431 causes) even when the retry time is not yet met. Previously they were
432 not, meaning that when (say) an account was over-quota and temp-rejecting,
433 and multiple senders' messages were queued, only one sender would get
434 notified on each configured delay_warning cycle.
435
aa6e77af 436JH/38 Bug 2351: Log failures to extract envelope addresses from message headers.
aaf3e414 437
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438JH/39 OpenSSL: clear the error stack after an SSL_accept(). With anon-auth
439 cipher-suites, an error can be left on the stack even for a succeeding
440 accept; this results in impossible error messages when a later operation
441 actually does fail.
442
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443AM/01 Bug 2359: GnuTLS: repeat lowlevel read and write operations while they
444 return error codes indicating retry. Under TLS1.3 this becomes required.
445
446JH/40 Fix the feature-cache refresh for EXPERIMENTAL_PIPE_CONNECT. Previously
447 it only wrote the new authenticators, resulting in a lack of tracking of
448 peer changes of ESMTP extensions until the next cache flush.
518b70e9 449
56ac062a
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450JH/41 Fix the loop reading a message header line to check for integer overflow,
451 and more-often against header_maxsize. Previously a crafted message could
452 induce a crash of the recive process; now the message is cleanly rejected.
453
ae63862b
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454JH/42 Bug 2366: Fix the behaviour of the dkim_verify_signers option. It had
455 been totally disabled for all of 4.91. Discovery and fix by "Mad Alex".
456
9723f966 457
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458Exim version 4.91
459-----------------
459fca58 460
c39c8870 461GF/01 DEFER rather than ERROR on redis cluster MOVED response.
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JH
462 When redis_servers is set to a list of > 1 element, and the Redis servers
463 in that list are in cluster configuration, convert the REDIS_REPLY_ERROR
464 case of MOVED into a DEFER case instead, thus moving the query onto the
465 next server in the list. For a cluster of N elements, all N servers must
466 be defined in redis_servers.
c39c8870 467
0800ef83
GF
468GF/02 Catch and remove uninitialized value warning in exiqsumm
469 Check for existence of @ARGV before looking at $ARGV[0]
470
459fca58
JH
471JH/01 Replace the store_release() internal interface with store_newblock(),
472 which internalises the check required to safely use the old one, plus
473 the allocate and data copy operations duplicated in both (!) of the
474 extant use locations.
475
944e8b37
JH
476JH/02 Disallow '/' characters in queue names specified for the "queue=" ACL
477 modifier. This matches the restriction on the commandline.
478
bbfb5dcd
JH
479JH/03 Fix pgsql lookup for multiple result-tuples with a single column.
480 Previously only the last row was returned.
481
a05d3e34
JH
482JH/04 Bug 2217: Tighten up the parsing of DKIM signature headers. Previously
483 we assumed that tags in the header were well-formed, and parsed the
484 element content after inspecting only the first char of the tag.
485 Assumptions at that stage could crash the receive process on malformed
486 input.
487
ce93c6d8
JH
488JH/05 Bug 2215: Fix crash associated with dnsdb lookup done from DKIM ACL.
489 While running the DKIM ACL we operate on the Permanent memory pool so that
490 variables created with "set" persist to the DATA ACL. Also (at any time)
491 DNS lookups that fail create cache records using the Permanent pool. But
492 expansions release any allocations made on the current pool - so a dnsdb
493 lookup expansion done in the DKIM ACL releases the memory used for the
494 DNS negative-cache, and bad things result. Solution is to switch to the
495 Main pool for expansions.
496 While we're in that code, add checks on the DNS cache during store_reset,
497 active in the testsuite.
498 Problem spotted, and debugging aided, by Wolfgang Breyha.
499
2577f55f
JH
500JH/06 Fix issue with continued-connections when the DNS shifts unreliably.
501 When none of the hosts presented to a transport match an already-open
502 connection, close it and proceed with the list. Previously we would
503 queue the message. Spotted by Lena with Yahoo, probably involving
504 round-robin DNS.
505
5b6f7658
JH
506JH/07 Bug 2214: Fix SMTP responses resulting from non-accept result of MIME ACL.
507 Previously a spurious "250 OK id=" response was appended to the proper
508 failure response.
509
c11d665d
JH
510JH/08 The "support for" informational output now, which built with Content
511 Scanning support, has a line for the malware scanner interfaces compiled
512 in. Interface can be individually included or not at build time.
e5ba8aa7
JH
513
514JH/09 The "aveserver", "kavdaemon" and "mksd" interfaces are now not included
515 by the template makefile "src/EDITME". The "STREAM" support for an older
516 ClamAV interface method is removed.
c11d665d 517
ba0e37b1
JH
518JH/10 Bug 2223: Fix mysql lookup returns for the no-data case (when the number of
519 rows affected is given instead).
520
96508de1
JH
521JH/11 The runtime Berkeley DB library version is now additionally output by
522 "exim -d -bV". Previously only the compile-time version was shown.
523
06fdb9f7
JH
524JH/12 Bug 2230: Fix cutthrough routing for nonfirst messages in an initiating
525 SMTP connection. Previously, when one had more receipients than the
526 first, an abortive onward connection was made. Move to full support for
527 multiple onward connections in sequence, handling cutthrough connection
528 for all multi-message initiating connections.
529
f83a760f
JH
530JH/13 Bug 2229: Fix cutthrough routing for nonstandard port numbers defined by
531 routers. Previously, a multi-recipient message would fail to match the
532 onward-connection opened for the first recipient, and cause its closure.
533
f1fed05b
JH
534JH/14 Bug 2174: A timeout on connect for a callout was also erroneously seen as
535 a timeout on read on a GnuTLS initiating connection, resulting in the
536 initiating connection being dropped. This mattered most when the callout
537 was marked defer_ok. Fix to keep the two timeout-detection methods
538 separate.
539
051d5efa
JH
540JH/15 Relax results from ACL control request to enable cutthrough, in
541 unsupported situations, from error to silently (except under debug)
542 ignoring. This covers use with PRDR, frozen messages, queue-only and
543 fake-reject.
544
cf3cd306
HSHR
545HS/01 Fix Buffer overflow in base64d() (CVE-2018-6789)
546
744976d4
JH
547JH/16 Fix bug in DKIM verify: a buffer overflow could corrupt the malloc
548 metadata, resulting in a crash in free().
549
aab9a843 550PP/01 Fix broken Heimdal GSSAPI authenticator integration.
7be14582 551 Broken in f2ed27cf5, missing an equals sign for specified-initialisers.
aab9a843 552 Broken also in d185889f4, with init system revamp.
7be14582 553
83d2a861
JH
554JH/17 Bug 2113: Fix conversation closedown with the Avast malware scanner.
555 Previously we abruptly closed the connection after reading a malware-
556 found indication; now we go on to read the "scan ok" response line,
557 and send a quit.
558
6741531c
JH
559JH/18 Bug 2239: Enforce non-usability of control=utf8_downconvert in the mail
560 ACL. Previously, a crash would result.
561
85e03244
JH
562JH/19 Speed up macro lookups during configuration file read, by skipping non-
563 macro text after a replacement (previously it was only once per line) and
564 by skipping builtin macros when searching for an uppercase lead character.
565
c0635b6d
JH
566JH/20 DANE support moved from Experimental to mainline. The Makefile control
567 for the build is renamed.
568
b808677c
JH
569JH/21 Fix memory leak during multi-message connections using STARTTLS. A buffer
570 was allocated for every new TLS startup, meaning one per message. Fix
571 by only allocating once (OpenSSL) or freeing on TLS-close (GnuTLS).
572
6678c382
JH
573JH/22 Bug 2236: When a DKIM verification result is overridden by ACL, DMARC
574 reported the original. Fix to report (as far as possible) the ACL
575 result replacing the original.
576
dec766a1
WB
577JH/23 Fix memory leak during multi-message connections using STARTTLS under
578 OpenSSL. Certificate information is loaded for every new TLS startup,
579 and the resources needed to be freed.
580
15ae19f9
JH
581JH/24 Bug 2242: Fix exim_dbmbuild to permit directoryless filenames.
582
e6532c4a
JH
583JH/25 Fix utf8_downconvert propagation through a redirect router. Previously it
584 was not propagated.
585
2556b3c6
SA
586JH/26 Bug 2253: For logging delivery lines under PRDR, append the overall
587 DATA response info to the (existing) per-recipient response info for
588 the "C=" log element. It can have useful tracking info from the
589 destination system. Patch from Simon Arlott.
590
fc8cd529
JH
591JH/27 Bug 2251: Fix ldap lookups that return a single attribute having zero-
592 length value. Previously this would segfault.
593
71bb51e0
HSHR
594HS/02 Support Avast multiline protoocol, this allows passing flags to
595 newer versions of the scanner.
596
e04bfa34
JH
597JH/28 Ensure that variables possibly set during message acceptance are marked
598 dead before release of memory in the daemon loop. This stops complaints
599 about them when the debug_store option is enabled. Discovered specifically
600 for sender_rate_period, but applies to a whole set of variables.
c232fc99
JH
601 Do the same for the queue-runner and queue-list loops, for variables set
602 from spool message files. Do the same for the SMTP per-message loop, for
603 certain variables indirectly set in ACL operations.
e04bfa34 604
ecce6d9a
JH
605JH/29 Bug 2250: Fix a longstanding bug in heavily-pipelined SMTP input (such
606 as a multi-recipient message from a mailinglist manager). The coding had
607 an arbitrary cutoff number of characters while checking for more input;
608 enforced by writing a NUL into the buffer. This corrupted long / fast
609 input. The problem was exposed more widely when more pipelineing of SMTP
610 responses was introduced, and one Exim system was feeding another.
611 The symptom is log complaints of SMTP syntax error (NUL chars) on the
612 receiving system, and refused recipients seen by the sending system
613 (propating to people being dropped from mailing lists).
614 Discovered and pinpointed by David Carter.
615
c9cf9ac4
JH
616JH/30 The (EXPERIMENTAL_DMARC) variable $dmarc_ar_header is withdrawn, being
617 replaced by the ${authresults } expansion.
618
b3b37076
JH
619JH/31 Bug 2257: Fix pipe transport to not use a socket-only syscall.
620
830832c9
HSHR
621HS/03 Set a handler for SIGTERM and call exit(3) if running as PID 1. This
622 allows proper process termination in container environments.
623
f64e8b5f
JH
624JH/32 Bug 2258: Fix spool_wireformat in combination with LMTP transport.
625 Previously the "final dot" had a newline after it; ensure it is CR,LF.
626
8f0776b5
JH
627JH/33 SPF: remove support for the "spf" ACL condition outcome values "err_temp"
628 and "err_perm", deprecated since 4.83 when the RFC-defined words
629 "temperror" and "permerror" were introduced.
630
857eaf37
JH
631JH/34 Re-introduce enforcement of no cutthrough delivery on transports having
632 transport-filters or DKIM-signing. The restriction was lost in the
633 consolidation of verify-callout and delivery SMTP handling.
5add7dc4 634 Extend the restriction to also cover ARC-signing.
857eaf37 635
c85476e9
JH
636JH/35 Cutthrough: for a final-dot response timeout (and nonunderstood responses)
637 in defer=pass mode supply a 450 to the initiator. Previously the message
638 would be spooled.
639
405074ad
PP
640PP/02 DANE: add dane_require_tls_ciphers SMTP Transport option; if unset,
641 tls_require_ciphers is used as before.
642
eb445b04
HSHR
643HS/03 Malware Avast: Better match the Avast multiline protocol. Add
644 "pass_unscanned". Only tmpfails from the scanner are written to
645 the paniclog, as they may require admin intervention (permission
646 denied, license issues). Other scanner errors (like decompression
647 bombs) do not cause a paniclog entry.
ad93c40f 648
d342446f
JH
649JH/36 Fix reinitialisation of DKIM logging variable between messages.
650 Previously it was possible to log spurious information in receive log
651 lines.
652
a28050f8
JH
653JH/37 Bug 2255: Revert the disable of the OpenSSL session caching. This
654 triggered odd behaviour from Outlook Express clients.
655
ddd16464
PP
656PP/03 Add util/renew-opendmarc-tlds.sh script for safe renewal of public
657 suffix list.
658
321ef002
JH
659JH/38 DKIM: accept Ed25519 pubkeys in SubjectPublicKeyInfo-wrapped form,
660 since the IETF WG has not yet settled on that versus the original
661 "bare" representation.
662
3203e7ba
JH
663JH/39 Fix syslog logging for syslog_timestamp=no and log_selector +millisec.
664 Previously the millisecond value corrupted the output.
665 Fix also for syslog_pid=no and log_selector +pid, for which the pid
666 corrupted the output.
667
bbfb5dcd 668
acfc18c3
PP
669Exim version 4.90
670-----------------
671
672JH/01 Rework error string handling in TLS interface so that the caller in
673 more cases is responsible for logging. This permits library-sourced
674 string to be attached to addresses during delivery, and collapses
675 pairs of long lines into single ones.
676
856d1e16
PP
677PP/01 Allow PKG_CONFIG_PATH to be set in Local/Makefile and use it correctly
678 during configuration. Wildcards are allowed and expanded.
679
b9df1829
JH
680JH/02 Rework error string handling in DKIM to pass more info back to callers.
681 This permits better logging.
682
875512a3
JH
683JH/03 Rework the transport continued-connection mechanism: when TLS is active,
684 do not close it down and have the child transport start it up again on
685 the passed-on TCP connection. Instead, proxy the child (and any
686 subsequent ones) for TLS via a unix-domain socket channel. Logging is
687 affected: the continued delivery log lines do not have any DNSSEC, TLS
5013d912 688 Certificate or OCSP information. TLS cipher information is still logged.
875512a3 689
fc3f96af
JH
690JH/04 Shorten the log line for daemon startup by collapsing adjacent sets of
691 identical IP addresses on different listening ports. Will also affect
692 "exiwhat" output.
693
98913c8e
BK
694PP/02 Bug 2070: uClibc defines __GLIBC__ without providing glibc headers;
695 add noisy ifdef guards to special-case this sillyness.
696 Patch from Bernd Kuhls.
697
8d909960
JH
698JH/05 Tighten up the checking in isip4 (et al): dotted-quad components larger
699 than 255 are no longer allowed.
700
7006ee24
JH
701JH/06 Default openssl_options to include +no_ticket, to reduce load on peers.
702 Disable the session-cache too, which might reduce our load. Since we
703 currrectly use a new context for every connection, both as server and
704 client, there is no benefit for these.
705 GnuTLS appears to not support tickets server-side by default (we don't
706 call gnutls_session_ticket_enable_server()) but client side is enabled
707 by default on recent versions (3.1.3 +) unless the PFS priority string
708 is used (3.2.4 +).
709
6e411084
PP
710PP/03 Add $SOURCE_DATE_EPOCH support for reproducible builds, per spec at
711 <https://reproducible-builds.org/specs/source-date-epoch/>.
712
4c2471ca
JH
713JH/07 Fix smtp transport use of limited max_rcpt under mua_wrapper. Previously
714 the check for any unsuccessful recipients did not notice the limit, and
715 erroneously found still-pending ones.
716
4e910c01
JH
717JH/08 Pipeline CHUNKING command and data together, on kernels that support
718 MSG_MORE. Only in-clear (not on TLS connections).
719
42055a33
JH
720JH/09 Avoid using a temporary file during transport using dkim. Unless a
721 transport-filter is involved we can buffer the headers in memory for
722 creating the signature, and read the spool data file once for the
723 signature and again for transmission.
724
eeb35890
JH
725JH/10 Enable use of sendfile in Linux builds as default. It was disabled in
726 4.77 as the kernel support then wasn't solid, having issues in 64bit
7d758a6a 727 mode. Now, it's been long enough. Add support for FreeBSD also.
eeb35890 728
b7d3afcf
JH
729JH/11 Bug 2104: Fix continued use of a transport connection with TLS. In the
730 case where the routing stage had gathered several addresses to send to
731 a host before calling the transport for the first, we previously failed
732 to close down TLS in the old transport process before passing the TCP
733 connection to the new process. The new one sent a STARTTLS command
734 which naturally failed, giving a failed delivery and bloating the retry
735 database. Investigation and fix prototype from Wolfgang Breyha.
736
40525d07
JH
737JH/12 Fix check on SMTP command input synchronisation. Previously there were
738 false-negatives in the check that the sender had not preempted a response
739 or prompt from Exim (running as a server), due to that code's lack of
a5ffa9b4 740 awareness of the SMTP input buffering.
40525d07 741
f33875c3
PP
742PP/04 Add commandline_checks_require_admin option.
743 Exim drops privileges sanely, various checks such as -be aren't a
744 security problem, as long as you trust local users with access to their
745 own account. When invoked by services which pass untrusted data to
746 Exim, this might be an issue. Set this option in main configuration
747 AND make fixes to the calling application, such as using `--` to stop
748 processing options.
749
a5ffa9b4
JH
750JH/13 Do pipelining under TLS. Previously, although safe, no advantage was
751 taken. Now take care to pack both (client) MAIL,RCPT,DATA, and (server)
752 responses to those, into a single TLS record each way (this usually means
753 a single packet). As a side issue, smtp_enforce_sync now works on TLS
754 connections.
925ac8e4 755
6600985a
PP
756PP/05 OpenSSL/1.1: use DH_bits() for more accurate DH param sizes. This
757 affects you only if you're dancing at the edge of the param size limits.
758 If you are, and this message makes sense to you, then: raise the
759 configured limit or use OpenSSL 1.1. Nothing we can do for older
760 versions.
761
ac4d558b
JH
762JH/14 For the "sock" variant of the malware scanner interface, accept an empty
763 cmdline element to get the documented default one. Previously it was
764 inaccessible.
765
e69636bc
JH
766JH/15 Fix a crash in the smtp transport caused when two hosts in succession
767 are unsuable for non-message-specific reasons - eg. connection timeout,
768 banner-time rejection.
769
a843a57e
JH
770JH/16 Fix logging of delivery remote port, when specified by router, under
771 callout/hold.
772
8e041ae0
PP
773PP/06 Repair manualroute's ability to take options in any order, even if one
774 is the name of a transport.
833c70bc
PP
775 Fixes bug 2140.
776
35a04365
HSHR
777HS/01 Cleanup, prevent repeated use of -p/-oMr (CVE-2017-1000369)
778
4226691b
JH
779JH/17 Change the list-building routines interface to use the expanding-string
780 triplet model, for better allocation and copying behaviour.
781
d185889f
JH
782JH/18 Prebuild the data-structure for "builtin" macros, for faster startup.
783 Previously it was constructed the first time a possibly-matching string
784 was met in the configuration file input during startup; now it is done
785 during compilation.
786
0a6c178c
JH
787JH/19 Bug 2141: Use the full-complex API for Berkeley DB rather than the legacy-
788 compatible one, to avoid the (poorly documented) possibility of a config
789 file in the working directory redirecting the DB files, possibly correpting
02745400 790 some existing file. CVE-2017-10140 assigned for BDB.
0a6c178c 791
fae8970d
JH
792JH/20 Bug 2147: Do not defer for a verify-with-callout-and-random which is not
793 cache-hot. Previously, although the result was properly cached, the
794 initial verify call returned a defer.
795
ad1a76fe 796JH/21 Bug 2151: Avoid using SIZE on the MAIL for a callout verify, on any but
14de8063
JH
797 the main verify for receipient in uncached-mode.
798
ad1a76fe
JH
799JH/22 Retire historical build files to an "unsupported" subdir. These are
800 defined as "ones for which we have no current evidence of testing".
801
135e9496
JH
802JH/23 DKIM: enforce the DNS pubkey record "h" permitted-hashes optional field,
803 if present. Previously it was ignored.
804
f2ed27cf
JH
805JH/24 Start using specified-initialisers in C structure init coding. This is
806 a C99 feature (it's 2017, so now considered safe).
807
7eb0e5d2
JH
808JH/25 Use one-bit bitfields for flags in the "addr" data structure. Previously
809 if was a fixed-sized field and bitmask ops via macros; it is now more
810 extensible.
811
4f9f4be4
812PP/07 GitHub PR 56: Apply MariaDB build fix.
813 Patch provided by Jaroslav Škarvada.
814
dc4de9cc
PP
815PP/08 Bug 2161: Fix regression in sieve quoted-printable handling introduced
816 during Coverity cleanups [4.87 JH/47]
817 Diagnosis and fix provided by Michael Fischer v. Mollard.
818
ea18931d
JH
819JH/26 Fix DKIM bug: when the pseudoheader generated for signing was exactly
820 the right size to place the terminating semicolon on its own folded
821 line, the header hash was calculated to an incorrect value thanks to
822 the (relaxed) space the fold became.
823
0768462d 824HS/02 Fix Bug 2130: large writes from the transport subprocess were chunked
2cee425a
HSHR
825 and confused the parent.
826
848214f7
JH
827JH/27 Fix SOCKS bug: an unitialized pointer was deref'd by the transport process
828 which could crash as a result. This could lead to undeliverable messages.
829
9e0ed81f
JH
830JH/28 Logging: "next input sent too soon" now shows where input was truncated
831 for log purposes.
832
2540f2f8
JH
833JH/29 Fix queue_run_in_order to ignore the PID portion of the message ID. This
834 matters on fast-turnover and PID-randomising systems, which were getting
835 out-of-order delivery.
836
e5ab0ba9
JH
837JH/30 Fix a logging bug on aarch64: an unsafe routine was previously used for
838 a possibly-overlapping copy. The symptom was that "Remote host closed
839 connection in response to HELO" was logged instead of the actual 4xx
840 error for the HELO.
841
e99a3a6c
JH
842JH/31 Fix CHUNKING code to properly flush the unwanted chunk after an error.
843 Previously only that bufferd was discarded, resulting in SYMTP command
844 desynchronisation.
845
18067c75
JH
846JH/32 DKIM: when a message has multiple signatures matching an identity given
847 in dkim_verify_signers, run the dkim acl once for each. Previously only
848 one run was done. Bug 2189.
849
72934ba7
JH
850JH/33 Downgrade an unfound-list name (usually a typo in the config file) from
851 "panic the current process" to "deliberately defer". The panic log is
852 still written with the problem list name; the mail and reject logs now
853 get a temp-reject line for the message that was being handled, saying
854 something like "domains check lookup or other defer". The SMTP 451
855 message is still "Temporary local problem".
856
625667b6
JH
857JH/34 Bug 2199: Fix a use-after-free while reading smtp input for header lines.
858 A crafted sequence of BDAT commands could result in in-use memory beeing
b488395f
JH
859 freed. CVE-2017-16943.
860
861HS/03 Bug 2201: Fix checking for leading-dot on a line during headers reading
862 from SMTP input. Previously it was always done; now only done for DATA
863 and not BDAT commands. CVE-2017-16944.
625667b6 864
d21bf202
JH
865JH/35 Bug 2201: Flush received data in BDAT mode after detecting an error fatal
866 to the message (such as an overlong header line). Previously this was
867 not done and we did not exit BDAT mode. Followon from the previous item
868 though a different problem.
869
acfc18c3 870
fd047340 871Exim version 4.89
acfc18c3 872-----------------
4c57a40e 873
9427e879 874JH/01 Bug 1922: Support IDNA2008. This has slightly different conversion rules
4c04137d 875 than -2003 did; needs libidn2 in addition to libidn.
fd047340 876
7b283890
JH
877JH/02 The path option on a pipe transport is now expanded before use.
878
4c57a40e
PP
879PP/01 GitHub PR 50: Do not call ldap_start_tls_s on ldapi:// connections.
880 Patch provided by "Björn", documentation fix added too.
881
5d036699
JH
882JH/03 Bug 2003: fix Proxy Protocol v2 handling: the address size field was
883 missing a wire-to-host endian conversion.
884
f4630439
JH
885JH/04 Bug 2004: fix CHUNKING in non-PIPELINEING mode. Chunk data following
886 close after a BDAT command line could be taken as a following command,
887 giving a synch failure. Fix by only checking for synch immediately
888 before acknowledging the chunk.
889
f988ce57
JS
890PP/02 GitHub PR 52: many spelling fixes, which include fixing parsing of
891 no_require_dnssec option and creation of _HAVE_TRANSPORT_APPEND_MAILDIR
892 macro. Patches provided by Josh Soref.
893
bd8fbe36
JH
894JH/05 Have the EHLO response advertise VRFY, if there is a vrfy ACL defined.
895 Previously we did not; the RFC seems ambiguous and VRFY is not listed
896 by IANA as a service extension. However, John Klensin suggests that we
897 should.
898
899JH/06 Bug 2017: Fix DKIM verification in -bh test mode. The data feed into
b895f4b2
JH
900 the dkim code may be unix-mode line endings rather than smtp wire-format
901 CRLF, so prepend a CR to any bare LF.
fd047340 902
bd8fbe36 903JH/07 Rationalise the coding for callout smtp conversations and transport ones.
902fbd69
JH
904 As a side-benfit, callouts can now use PIPELINING hence fewer round-trips.
905
bd8fbe36
JH
906JH/08 Bug 2016: Fix DKIM verification vs. CHUNKING. Any BDAT commands after
907 the first were themselves being wrongly included in the feed into dkim
908 processing; with most chunk sizes in use this resulted in an incorrect
909 body hash calculated value.
910
eea19017
JH
911JH/09 Bug 2014: permit inclusion of a DKIM-Signature header in a received
912 DKIM signature block, for verification. Although advised against by
913 standards it is specifically not ruled illegal.
914
44e6651b
JH
915JH/10 Bug 2025: Fix reception of (quoted) local-parts with embedded spaces.
916
917JH/11 Bug 2029: Fix crash in DKIM verification when a message signature block is
918 missing a body hash (the bh= tag).
919
920JH/12 Bug 2018: Re-order Proxy Protocol startup versus TLS-on-connect startup.
921 It seems that HAProxy sends the Proxy Protocol information in clear and
922 only then does a TLS startup, so do the same.
923
924JH/13 Bug 2027: Avoid attempting to use TCP Fast Open for non-transport client
925 TCP connections (such as for Spamd) unless the daemon successfully set
926 Fast Open mode on its listening sockets. This fixes breakage seen on
927 too-old kernels or those not configured for Fast Open, at the cost of
928 requiring both directions being enabled for TFO, and TFO never being used
929 by non-daemon-related Exim processes.
930
931JH/14 Bug 2000: Reject messages recieved with CHUNKING but with malformed line
932 endings, at least on the first header line. Try to canonify any that get
933 past that check, despite the cost.
934
b6040544
JH
935JH/15 Angle-bracket nesting (an error inserted by broken sendmails) levels are
936 now limited to an arbitrary five deep, while parsing addresses with the
937 strip_excess_angle_brackets option enabled.
938
f700ea4d
PP
939PP/03 Bug 2018: For Proxy Protocol and TLS-on-connect, do not over-read and
940 instead leave the unprompted TLS handshake in socket buffer for the
941 TLS library to consume.
942
da88acae
PP
943PP/04 Bug 2018: Also handle Proxy Protocol v2 safely.
944
f6ef9370
PP
945PP/05 FreeBSD compat: handle that Ports no longer create /usr/bin/perl
946
90341c71
JH
947JH/16 Drop variables when they go out of scope. Memory management drops a whole
948 region in one operation, for speed, and this leaves assigned pointers
949 dangling. Add checks run only under the testsuite which checks all
950 variables at a store-reset and panics on a dangling pointer; add code
951 explicitly nulling out all the variables discovered. Fixes one known
952 bug: a transport crash, where a dangling pointer for $sending_ip_address
953 originally assigned in a verify callout, is re-used.
954
1ec2ab36
PP
955PP/06 Drop '.' from @INC in various Perl scripts.
956
957PP/07 Switch FreeBSD iconv to always use the base-system libc functions.
958
959PP/08 Reduce a number of compilation warnings under clang; building with
960 CC=clang CFLAGS+=-Wno-dangling-else -Wno-logical-op-parentheses
961 should be warning-free.
962
8b2b9480
PP
963JH/17 Fix inbound CHUNKING when DKIM disabled at runtime.
964
965HS/01 Fix portability problems introduced by PP/08 for platforms where
966 realloc(NULL) is not equivalent to malloc() [SunOS et al].
967
d953610f
HSHR
968HS/02 Bug 1974: Fix missing line terminator on the last received BDAT
969 chunk. This allows us to accept broken chunked messages. We need a more
970 general solution here.
971
7dc5f827
PP
972PP/09 Wrote util/chunking_fixqueue_finalnewlines.pl to help recover
973 already-broken messages in the queue.
974
4bb432cb
PP
975JH/18 Bug 2061: Fix ${extract } corrupting an enclosing ${reduce } $value.
976
3b1a84c8
PP
977JH/19 Fix reference counting bug in routing-generated-address tracking.
978
902fbd69 979
8d042305
JH
980Exim version 4.88
981-----------------
4c57a40e 982
9094b84b
JH
983JH/01 Use SIZE on MAIL FROM in a cutthrough connection, if the destination
984 supports it and a size is available (ie. the sending peer gave us one).
8d042305 985
03d5892b
JH
986JH/02 The obsolete acl condition "demime" is removed (finally, after ten
987 years of being deprecated). The replacements are the ACLs
988 acl_smtp_mime and acl_not_smtp_mime.
989
4b0fe319
JH
990JH/03 Upgrade security requirements imposed for hosts_try_dane: previously
991 a downgraded non-dane trust-anchor for the TLS connection (CA-style)
992 or even an in-clear connection were permitted. Now, if the host lookup
993 was dnssec and dane was requested then the host is only used if the
994 TLSA lookup succeeds and is dnssec. Further hosts (eg. lower priority
995 MXs) will be tried (for hosts_try_dane though not for hosts_require_dane)
996 if one fails this test.
997 This means that a poorly-configured remote DNS will make it incommunicado;
998 but it protects against a DNS-interception attack on it.
999
789f8a4f
JH
1000JH/04 Bug 1810: make continued-use of an open smtp transport connection
1001 non-noisy when a race steals the message being considered.
1002
23bb6982 1003JH/05 If main configuration option tls_certificate is unset, generate a
f59aaaaa 1004 self-signed certificate for inbound TLS connections.
23bb6982 1005
0bd1b1ed 1006JH/06 Bug 165: hide more cases of password exposure - this time in expansions
f42deca9 1007 in rewrites and routers.
0bd1b1ed 1008
20b9a2dc
JH
1009JH/07 Retire gnutls_require_mac et.al. These were nonfunctional since 4.80
1010 and logged a warning sing 4.83; now they are a configuration file error.
1011
05392bbc
JH
1012JH/08 Bug 1836: Fix crash in VRFY handling when handed an unqualified name
1013 (lacking @domain). Apply the same qualification processing as RCPT.
1014
1a6230a3
JH
1015JH/09 Bug 1804: Avoid writing msglog files when in -bh or -bhc mode.
1016
cfab9d68
JH
1017JH/10 Support ${sha256:} applied to a string (as well as the previous
1018 certificate).
1019
98c82a3d
JH
1020JH/11 Cutthrough: avoid using the callout hints db on a verify callout when
1021 a cutthrough deliver is pending, as we always want to make a connection.
1022 This also avoids re-routing the message when later placing the cutthrough
1023 connection after a verify cache hit.
1024 Do not update it with the verify result either.
1025
1026JH/12 Cutthrough: disable when verify option success_on_redirect is used, and
1027 when routing results in more than one destination address.
1028
ae8386f0
JH
1029JH/13 Cutthrough: expand transport dkim_domain option when testing for dkim
1030 signing (which inhibits the cutthrough capability). Previously only
1031 the presence of an option was tested; now an expansion evaluating as
1032 empty is permissible (obviously it should depend only on data available
1033 when the cutthrough connection is made).
1034
0d9fa8c0
JH
1035JH/14 Fix logging of errors under PIPELINING. Previously the log line giving
1036 the relevant preceding SMTP command did not note the pipelining mode.
1037
3581f321
JH
1038JH/15 Fix counting of empty lines in $body_linecount and $message_linecount.
1039 Previously they were not counted.
1040
ef3a1a30
JH
1041JH/16 DANE: treat a TLSA lookup response having all non-TLSA RRs, the same
1042 as one having no matching records. Previously we deferred the message
1043 that needed the lookup.
1044
4c04137d 1045JH/17 Fakereject: previously logged as a normal message arrival "<="; now
27b9e5f4
JH
1046 distinguished as "(=".
1047
1435d4b2
JH
1048JH/18 Bug 1867: make the fail_defer_domains option on a dnslookup router work
1049 for missing MX records. Previously it only worked for missing A records.
1050
eea0defe
JB
1051JH/19 Bug 1850: support Radius libraries that return REJECT_RC.
1052
1053JH/20 Bug 1872: Ensure that acl_smtp_notquit is run when the connection drops
1054 after the data-go-ahead and data-ack. Patch from Jason Betts.
860cdda2 1055
4c04137d 1056JH/21 Bug 1846: Send DMARC forensic reports for reject and quarantine results,
72a201e2
TM
1057 even for a "none" policy. Patch from Tony Meyer.
1058
1c788856
JH
1059JH/22 Fix continued use of a connection for further deliveries. If a port was
1060 specified by a router, it must also match for the delivery to be
1061 compatible.
1062
e3b1f624
JH
1063JH/23 Bug 1874: fix continued use of a connection for further deliveries.
1064 When one of the recipients of a message was unsuitable for the connection
1065 (has no matching addresses), we lost track of needing to mark it
1066 deferred. As a result mail would be lost.
1067
a57ce043
JH
1068JH/24 Bug 1832: Log EHLO response on getting conn-close response for HELO.
1069
f59aaaaa 1070JH/25 Decoding ACL controls is now done using a binary search; the source code
2d009132
JH
1071 takes up less space and should be simpler to maintain. Merge the ACL
1072 condition decode tables also, with similar effect.
d7bed771 1073
d1f9fb42
JH
1074JH/26 Fix problem with one_time used on a redirect router which returned the
1075 parent address unchanged. A retry would see the parent address marked as
1076 delivered, so not attempt the (identical) child. As a result mail would
1077 be lost.
1078
92b0827a
JH
1079JH/27 Fix a possible security hole, wherein a process operating with the Exim
1080 UID can gain a root shell. Credit to http://www.halfdog.net/ for
1081 discovery and writeup. Ubuntu bug 1580454; no bug raised against Exim
1082 itself :(
1083
ddf1b11a
JH
1084JH/28 Enable {spool,log} filesystem space and inode checks as default.
1085 Main config options check_{log,spool}_{inodes,space} are now
1086 100 inodes, 10MB unless set otherwise in the configuration.
1087
3cc3f762
JH
1088JH/29 Fix the connection_reject log selector to apply to the connect ACL.
1089 Previously it only applied to the main-section connection policy
1090 options.
1091
ae5afa61
JH
1092JH/30 Bug 1897: fix callouts connection fallback from TLS to cleartext.
1093
317e40ac
PP
1094PP/01 Changed default Diffie-Hellman parameters to be Exim-specific, created
1095 by me. Added RFC7919 DH primes as an alternative.
1096
8b0fb68e
PP
1097PP/02 Unbreak build via pkg-config with new hash support when crypto headers
1098 are not in the system include path.
1099
ad7fc6eb 1100JH/31 Fix longstanding bug with aborted TLS server connection handling. Under
f59aaaaa 1101 GnuTLS, when a session startup failed (eg because the client disconnected)
ad7fc6eb
JH
1102 Exim did stdio operations after fclose. This was exposed by a recent
1103 change which nulled out the file handle after the fclose.
ad7fc6eb 1104
ee5b1e28
JH
1105JH/32 Bug 1909: Fix OCSP proof verification for cases where the proof is
1106 signed directly by the cert-signing cert, rather than an intermediate
1107 OCSP-signing cert. This is the model used by LetsEncrypt.
1108
5ddc9771
JH
1109JH/33 Bug 1914: Ensure socket is nonblocking before draining after SMTP QUIT.
1110
8d73599f
JH
1111HS/01 Fix leak in verify callout under GnuTLS, about 3MB per recipient on
1112 an incoming connection.
1113
446415f5
HSHR
1114HS/02 Bug 1802: Do not half-close the connection after sending a request
1115 to rspamd.
1116
8e53a4fc
HSHR
1117HS/03 Use "auto" as the default EC curve parameter. For OpenSSL < 1.0.2
1118 fallback to "prime256v1".
8d042305 1119
87cb4a16 1120JH/34 SECURITY: Use proper copy of DATA command in error message.
4c57a40e 1121 Could leak key material. Remotely exploitable. CVE-2016-9963.
87cb4a16
JH
1122
1123
0d9b78be
JH
1124Exim version 4.87
1125-----------------
4c57a40e 1126
82d14d6a
JH
1127JH/01 Bug 1664: Disable OCSP for GnuTLS library versions at/before 3.3.16
1128 and 3.4.4 - once the server is enabled to respond to an OCSP request
1129 it does even when not requested, resulting in a stapling non-aware
1130 client dropping the TLS connection.
0d9b78be 1131
6c6d6e48
TF
1132TF/01 Code cleanup: Overhaul the debug_selector and log_selector machinery to
1133 support variable-length bit vectors. No functional change.
1134
ac881e27
TF
1135TF/02 Improve the consistency of logging incoming and outgoing interfaces.
1136 The I= interface field on outgoing lines is now after the H= remote
1137 host field, same as incoming lines. There is a separate
1138 outgoing_interface log selector which allows you to disable the
1139 outgoing I= field.
1140
c8899c20
JH
1141JH/02 Bug 728: Close logfiles after a daemon-process "exceptional" log write.
1142 If not running log_selector +smtp_connection the mainlog would be held
1143 open indefinitely after a "too many connections" event, including to a
1144 deleted file after a log rotate. Leave the per net connection logging
1145 leaving it open for efficiency as that will be quickly detected by the
1146 check on the next write.
1147
f1b81d81
HSHR
1148HS/01 Bug 1671: Fix post transport crash.
1149 Processing the wait-<transport> messages could crash the delivery
1150 process if the message IDs didn't exist for some reason. When
1151 using 'split_spool_directory=yes' the construction of the spool
1152 file name failed already, exposing the same netto behaviour.
1153
f38917cc
JH
1154JH/03 Bug 425: Capture substrings in $regex1, $regex2 etc from regex &
1155 mime_regex ACL conditions.
1156
895fbaf2
JH
1157JH/04 Bug 1686: When compiled with EXPERIMENTAL_DSN_INFO: Add extra information
1158 to DSN fail messages (bounces): remote IP, remote greeting, remote response
1159 to HELO, local diagnostic string.
1160
805bb5c3
JH
1161JH/05 Downgrade message for a TLS-certificate-based authentication fail from
1162 log line to debug. Even when configured with a tls authenticator many
1163 client connections are expected to not authenticate in this way, so
1164 an authenticate fail is not an error.
1165
56c2a7be
HSHR
1166HS/02 Add the Exim version string to the process info. This way exiwhat
1167 gives some more detail about the running daemon.
1168
4c04137d 1169JH/06 Bug 1395: time-limit caching of DNS lookups, to the TTL value. This may
14b3c5bc
JH
1170 matter for fast-change records such as DNSBLs.
1171
6f6dedcc
JH
1172JH/07 Bug 1678: Always record an interface option value, if set, as part of a
1173 retry record, even if constant. There may be multiple transports with
1174 different interface settings and the retry behaviour needs to be kept
1175 distinct.
1176
0f557e90
JH
1177JH/08 Bug 1586: exiqgrep now refuses to run if there are unexpected arguments.
1178
1179JH/09 Bug 1700: ignore space & tab embedded in base64 during decode.
1180
ec0eb1a3
JH
1181JH/10 Bug 840: fix log_defer_output option of pipe transport
1182
41e93589
JH
1183JH/11 Bug 830: use same host for all RCPTS of a message, even under
1184 hosts_randomize. This matters a lot when combined with mua_wrapper.
1185
98b98887 1186JH/12 Bug 1706: percent and underbar characters are no longer escaped by the
376d2ec0
JH
1187 ${quote_pgsql:<string>} operator.
1188
98b98887
JH
1189JH/13 Bug 1708: avoid misaligned access in cached lookup.
1190
858e91c2
JH
1191JH/14 Change header file name for freeradius-client. Relevant if compiling
1192 with Radius support; from the Gentoo tree and checked under Fedora.
1193
1194JH/15 Bug 1712: Introduce $prdr_requested flag variable
1195
6ff55e50
JH
1196JH/16 Bug 1714: Permit an empty string as expansion result for transport
1197 option transport_filter, meaning no filtering.
1198
3b957582
JB
1199JH/17 Bug 1713: Fix non-PDKIM_DEBUG build. Patch from Jasen Betts.
1200
23f3dc67
JH
1201JH/18 Bug 1709: When built with TLS support, the tls_advertise_hosts option now
1202 defaults to "*" (all hosts). The variable is now available when not built
4c04137d 1203 with TLS, default unset, mainly to enable keeping the testsuite sane.
23f3dc67
JH
1204 If a server certificate is not supplied (via tls_certificate) an error is
1205 logged, and clients will find TLS connections fail on startup. Presumably
1206 they will retry in-clear.
1207 Packagers of Exim are strongly encouraged to create a server certificate
1208 at installation time.
1209
240c288f
JH
1210HS/03 Add -bP config_file as a synonym for -bP configure_file, for consistency
1211 with the $config_file variable.
1212
5ef5dd52
JB
1213JH/19 Two additional event types: msg:rcpt:defer and msg:rcpt:host:defer. Both
1214 in transport context, after the attempt, and per-recipient. The latter type
1215 is per host attempted. The event data is the error message, and the errno
1216 information encodes the lookup type (A vs. MX) used for the (first) host,
4c04137d 1217 and the trailing two digits of the smtp 4xx response.
5ef5dd52 1218
e161710d
GF
1219GF/01 Bug 1715: Fix for race condition in exicyclog, where exim could attempt
1220 to write to mainlog (or rejectlog, paniclog) in the window between file
1221 creation and permissions/ownership being changed. Particularly affects
1222 installations where exicyclog is run as root, rather than exim user;
1223 result is that the running daemon panics and dies.
1224
a159f203
JH
1225JH/20 Bug 1701: For MySQL lookups, support MySQL config file option group names.
1226
7f06582c
JH
1227JH/21 Bug 1720: Add support for priority groups and weighted-random proxy
1228 selection for the EXPERIMENTAL_SOCKS feature, via new per-proxy options
1229 "pri" and "weight". Note that the previous implicit priority given by the
1230 list order is no longer honoured.
1231
4c04137d 1232JH/22 Bugs 963, 1721: Fix some corner cases in message body canonicalization
abe1010c
JH
1233 for DKIM processing.
1234
f0989ec0
JH
1235JH/23 Move SOCKS5 support from Experimental to mainline, enabled for a build
1236 by defining SUPPORT_SOCKS.
74f150bf 1237
cee5f132
JH
1238JH/26 Move PROXY support from Experimental to mainline, enabled for a build
1239 by defining SUPPORT_PROXY. Note that the proxy_required_hosts option
e6d2a989
JH
1240 is renamed to hosts_proxy, and the proxy_{host,target}_{address,port}.
1241 variables are renamed to proxy_{local,external}_{address,port}.
cee5f132 1242
8c5d388a
JH
1243JH/27 Move Internationalisation support from Experimental to mainline, enabled
1244 for a build by defining SUPPORT_I18N
1245
2d8d625b
JH
1246JH/28 Bug 1745: Fix redis lookups to handle (quoted) spaces embedded in parts
1247 of the query string, and make ${quote_redis:} do that quoting.
1248
0cbf2b82
JH
1249JH/29 Move Events support from Experimental to mainline, enabled by default
1250 and removable for a build by defining DISABLE_EVENT.
1251
f2f2c91b
JH
1252JH/30 Updated DANE implementation code to current from Viktor Dukhovni.
1253
ce325893
JH
1254JH/31 Fix bug with hosts_connection_nolog and named-lists which were wrongly
1255 cached by the daemon.
1256
de78e2d5
JH
1257JH/32 Move Redis support from Experimental to mainline, enabled for a build
1258 by defining LOOKUP_REDIS. The libhiredis library is required.
1259
379ba7d0
JH
1260JH/33 Bug 1748: Permit ACL dnslists= condition in non-smtp ACLs if explicit
1261 keys are given for lookup.
1262
f444c2c7
JH
1263JH/34 Bug 1192: replace the embedded copy of PolarSSL RSA routines in the DKIM
1264 support, by using OpenSSL or GnuTLS library ones. This means DKIM is
07c73177
JH
1265 only supported when built with TLS support. The PolarSSL SHA routines
1266 are still used when the TLS library is too old for convenient support.
f444c2c7 1267
a57b6200
JH
1268JH/35 Require SINGLE_DH_USE by default in OpenSSL (main config option
1269 openssl_options), for security. OpenSSL forces this from version 1.1.0
1270 server-side so match that on older versions.
1271
07c73177 1272JH/36 Bug 1778: longstanding bug in memory use by the ${run } expansion: A fresh
fa01e4f8 1273 allocation for $value could be released as the expansion processing
07c73177 1274 concluded, but leaving the global pointer active for it.
fa01e4f8 1275
4f6ae5c3
JH
1276JH/37 Bug 1769: Permit a VRFY ACL to override the default 252 response,
1277 and to use the domains and local_parts ACL conditions.
1278
1bc460a6
JH
1279JH/38 Fix cutthrough bug with body lines having a single dot. The dot was
1280 incorrectly not doubled on cutthrough transmission, hence seen as a
1281 body-termination at the receiving system - resulting in truncated mails.
62ac2eb7 1282 Commonly the sender saw a TCP-level error, and retransmitted the message
1bc460a6
JH
1283 via the normal store-and-forward channel. This could result in duplicates
1284 received - but deduplicating mailstores were liable to retain only the
1285 initial truncated version.
1286
ab9152ff 1287JH/39 Bug 1781: Fix use of DKIM private-keys having trailing '=' in the base-64.
df3def24 1288
67e87fcf
JH
1289JH/40 Fix crash in queryprogram router when compiled with EXPERIMENTAL_SRS.
1290
ab9152ff
JH
1291JH/41 Bug 1792: Fix selection of headers to sign for DKIM: bottom-up. While
1292 we're in there, support oversigning also; bug 1309.
1293
af483912
JH
1294JH/42 Bug 1796: Fix error logged on a malware scanner connection failure.
1295
bc3c7bb7 1296HS/04 Add support for keep_environment and add_environment options.
df3def24 1297
13559da6
JH
1298JH/43 Tidy coding issues detected by gcc --fsanitize=undefined. Some remain;
1299 either intentional arithmetic overflow during PRNG, or testing config-
1300 induced overflows.
1301
59eaad2b
JH
1302JH/44 Bug 1800: The combination of a -bhc commandline option and cutthrough
1303 delivery resulted in actual delivery. Cancel cutthrough before DATA
1304 stage.
1305
f9334a28
JH
1306JH/45 Fix cutthrough, when connection not opened by verify and target hard-
1307 rejects a recipient: pass the reject to the originator.
1308
dc8091e7
JH
1309JH/46 Multiple issues raised by Coverity. Some were obvious or plausible bugs.
1310 Many were false-positives and ignorable, but it's worth fixing the
1311 former class.
1312
dfe7d917
JH
1313JH/47 Fix build on HP-UX and older Solaris, which need (un)setenv now also
1314 for the new environment-manipulation done at startup. Move the routines
1315 from being local to tls.c to being global via the os.c file.
1316
93cc2d6e
JH
1317JH/48 Bug 1807: Fix ${extract } for the numeric/3-string case. While preparsing
1318 an extract embedded as result-arg for a map, the first arg for extract
1319 is unavailable so we cannot tell if this is a numbered or keyed
1320 extraction. Accept either.
1321
13559da6 1322
9c695f6d
JH
1323Exim version 4.86
1324-----------------
4c57a40e 1325
9c695f6d
JH
1326JH/01 Bug 1545: The smtp transport option "retry_include_ip_address" is now
1327 expanded.
1328
506900af
JH
1329JH/02 The smtp transport option "multi_domain" is now expanded.
1330
ad07e9ad
JH
1331JH/03 The smtp transport now requests PRDR by default, if the server offers
1332 it.
1333
01a4a5c5 1334JH/04 Certificate name checking on server certificates, when exim is a client,
b3ef41c9 1335 is now done by default. The transport option tls_verify_cert_hostnames
01a4a5c5
JH
1336 can be used to disable this per-host. The build option
1337 EXPERIMENTAL_CERTNAMES is withdrawn.
1338
cb1d7830 1339JH/05 The value of the tls_verify_certificates smtp transport and main options
0e0f3f56 1340 default to the word "system" to access the system default CA bundle.
cb1d7830
JH
1341 For GnuTLS, only version 3.0.20 or later.
1342
610ff438 1343JH/06 Verification of the server certificate for a TLS connection is now tried
6d580f19
JH
1344 (but not required) by default. The verification status is now logged by
1345 default, for both outbound TLS and client-certificate supplying inbound
1346 TLS connections
610ff438 1347
f926e272
JH
1348JH/07 Changed the default rfc1413 lookup settings to disable calls. Few
1349 sites use this now.
1350
50dc7409
JH
1351JH/08 The EXPERIMENTAL_DSN compile option is no longer needed; all Delivery
1352 Status Notification (bounce) messages are now MIME format per RFC 3464.
1353 Support for RFC 3461 DSN options NOTIFY,ENVID,RET,ORCPT can be advertised
1354 under the control of the dsn_advertise_hosts option, and routers may
1355 have a dsn_lasthop option.
1356
0f0c8159
JH
1357JH/09 A timeout of 2 minutes is now applied to all malware scanner types by
1358 default, modifiable by a malware= option. The list separator for
23763898 1359 the options can now be changed in the usual way. Bug 68.
4e71661f 1360
1ad6489e
JH
1361JH/10 The smtp_receive_timeout main option is now expanded before use.
1362
aeaf5db3
JH
1363JH/11 The incoming_interface log option now also enables logging of the
1364 local interface on delivery outgoing connections.
1365
5032d1cf
JH
1366JH/12 The cutthrough-routing facility now supports multi-recipient mails,
1367 if the interface and destination host and port all match.
1368
7e8360e6
JH
1369JH/13 Bug 344: The verify = reverse_host_lookup ACL condition now accepts a
1370 /defer_ok option.
1371
c5f280e2
AL
1372JH/14 Bug 1573: The spam= ACL condition now additionally supports Rspamd.
1373 Patch from Andrew Lewis.
1374
fd4d8871 1375JH/15 Bug 670: The spamd_address main option (for the spam= ACL condition)
dc7b3d36 1376 now supports optional time-restrictions, weighting, and priority
fd4d8871
R
1377 modifiers per server. Patch originally by <rommer@active.by>.
1378
1379JH/16 The spamd_address main option now supports a mixed list of local
2aad5761
JH
1380 and remote servers. Remote servers can be IPv6 addresses, and
1381 specify a port-range.
fd4d8871 1382
23763898
JH
1383JH/17 Bug 68: The spamd_address main option now supports an optional
1384 timeout value per server.
1385
2ad78978
JH
1386JH/18 Bug 1581: Router and transport options headers_add/remove can
1387 now have the list separator specified.
1388
8a512ed5 1389JH/19 Bug 392: spamd_address, and clamd av_scanner, now support retry
cfab9d68 1390 option values.
8a512ed5 1391
82c0c8ea 1392JH/20 Bug 1571: Ensure that $tls_in_peerdn is set, when verification fails
f69979cf
JH
1393 under OpenSSL.
1394
cc00f4af
JH
1395JH/21 Support for the A6 type of dns record is withdrawn.
1396
82c0c8ea
JH
1397JH/22 Bug 608: The result of a QUIT or not-QUIT toplevel ACL now matters
1398 rather than the verbs used.
1399
b980ed83
JH
1400JH/23 Bug 1572: Increase limit on SMTP confirmation message copy size
1401 from 255 to 1024 chars.
1402
6c9ed72e
JH
1403JH/24 Verification callouts now attempt to use TLS by default.
1404
cfab9d68 1405HS/01 DNSSEC options (dnssec_require_domains, dnssec_request_domains)
99c1bb4e 1406 are generic router options now. The defaults didn't change.
50dc7409 1407
f846c8f5
JH
1408JH/25 Bug 466: Add RFC2322 support for MIME attachment filenames.
1409 Original patch from Alexander Shikoff, worked over by JH.
1410
fd4c285c
HSHR
1411HS/02 Bug 1575: exigrep falls back to autodetection of compressed
1412 files if ZCAT_COMMAND is not executable.
1413
4c04137d 1414JH/26 Bug 1539: Add timeout/retry options on dnsdb lookups.
fd7f7910 1415
d2a2c69b
JH
1416JH/27 Bug 286: Support SOA lookup in dnsdb lookups.
1417
8241d8dd
JH
1418JH/28 Bug 1588: Do not use the A lookup following an AAAA for setting the FQDN.
1419 Normally benign, it bites when the pair was led to by a CNAME;
4c04137d 1420 modern usage is to not canonicalize the domain to a CNAME target
8241d8dd
JH
1421 (and we were inconsistent anyway for A-only vs AAAA+A).
1422
1f12df4d
JH
1423JH/29 Bug 1632: Removed the word "rejected" from line logged for ACL discards.
1424
1f155f8e
JH
1425JH/30 Check the forward DNS lookup for DNSSEC, in addition to the reverse,
1426 when evaluating $sender_host_dnssec.
1427
1705dd20
JH
1428JH/31 Check the HELO verification lookup for DNSSEC, adding new
1429 $sender_helo_dnssec variable.
1430
038597d2
PP
1431JH/32 Bug 1397: Enable ECDHE on OpenSSL, just the NIST P-256 curve.
1432
474f71bf
JH
1433JH/33 Bug 1346: Note MAIL cmd seen in -bS batch, to avoid smtp_no_mail log.
1434
7137ca4b
JH
1435JH/34 Bug 1648: Fix a memory leak seen with "mailq" and large queues.
1436
dcb1095c
JH
1437JH/35 Bug 1642: Fix support of $spam_ variables at delivery time. Was
1438 documented as working, but never had. Support all but $spam_report.
1439
2f460950
JH
1440JH/36 Bug 1659: Guard checking of input smtp commands again pseudo-command
1441 added for tls authenticator.
1442
2f680c0c
HSHR
1443HS/03 Add perl_taintmode main config option
1444
9c695f6d 1445
e449c3b0
TL
1446Exim version 4.85
1447-----------------
4c57a40e 1448
e449c3b0
TL
1449TL/01 When running the test suite, the README says that variables such as
1450 no_msglog_check are global and can be placed anywhere in a specific
1451 test's script, however it was observed that placement needed to be near
1452 the beginning for it to behave that way. Changed the runtest perl
1453 script to read through the entire script once to detect and set these
1454 variables, reset to the beginning of the script, and then run through
1455 the script parsing/test process like normal.
1456
ac20058f
TL
1457TL/02 The BSD's have an arc4random API. One of the functions to induce
1458 adding randomness was arc4random_stir(), but it has been removed in
1459 OpenBSD 5.5. Detect this OpenBSD version and skip calling this
1460 function when detected.
1461
a9b8ec8b
JH
1462JH/01 Expand the EXPERIMENTAL_TPDA feature. Several different events now
1463 cause callback expansion.
1464
6286d7c4
TL
1465TL/03 Bugzilla 1518: Clarify "condition" processing in routers; that
1466 syntax errors in an expansion can be treated as a string instead of
1467 logging or causing an error, due to the internal use of bool_lax
1468 instead of bool when processing it.
1469
0f06b4f2 1470JH/02 Add EXPERIMENTAL_DANE, allowing for using the DNS as trust-anchor for
d567a64d
JH
1471 server certificates when making smtp deliveries.
1472
be36e572
JH
1473JH/03 Support secondary-separator specifier for MX, SRV, TLSA lookups.
1474
ac4ef9bd
JH
1475JH/04 Add ${sort {list}{condition}{extractor}} expansion item.
1476
0eb51736
TL
1477TL/04 Bugzilla 1216: Add -M (related messages) option to exigrep.
1478
c713ca4b
TL
1479TL/05 GitHub Issue 18: Adjust logic testing for true/false in redis lookups.
1480 Merged patch from Sebastian Wiedenroth.
e449c3b0 1481
bd21a787
WB
1482JH/05 Fix results-pipe from transport process. Several recipients, combined
1483 with certificate use, exposed issues where response data items split
1484 over buffer boundaries were not parsed properly. This eventually
1485 resulted in duplicates being sent. This issue only became common enough
4c04137d 1486 to notice due to the introduction of connection certificate information,
bd21a787
WB
1487 the item size being so much larger. Found and fixed by Wolfgang Breyha.
1488
8bc732e8
JH
1489JH/06 Bug 1533: Fix truncation of items in headers_remove lists. A fixed
1490 size buffer was used, resulting in syntax errors when an expansion
1491 exceeded it.
1492
a7fec7a7
JH
1493JH/07 Add support for directories of certificates when compiled with a GnuTLS
1494 version 3.3.6 or later.
1495
4c04137d 1496JH/08 Rename the TPDA experimental facility to Event Actions. The #ifdef
774ef2d7
JH
1497 is EXPERIMENTAL_EVENT, the main-configuration and transport options
1498 both become "event_action", the variables become $event_name, $event_data
aec45841 1499 and $event_defer_errno. There is a new variable $verify_mode, usable in
723fe533
JH
1500 routers, transports and related events. The tls:cert event is now also
1501 raised for inbound connections, if the main configuration event_action
1502 option is defined.
774ef2d7 1503
eca4debb
TL
1504TL/06 In test suite, disable OCSP for old versions of openssl which contained
1505 early OCSP support, but no stapling (appears to be less than 1.0.0).
1506
8d692470
JH
1507JH/09 When compiled with OpenSSL and EXPERIMENTAL_CERTNAMES, the checks on
1508 server certificate names available under the smtp transport option
1509 "tls_verify_cert_hostname" now do not permit multi-component wildcard
1510 matches.
1511
e9477a08
JH
1512JH/10 Time-related extraction expansions from certificates now use the main
1513 option "timezone" setting for output formatting, and are consistent
1514 between OpenSSL and GnuTLS compilations. Bug 1541.
1515
ad4c5ff9
JH
1516JH/11 Fix a crash in mime ACL when meeting a zero-length, quoted or RFC2047-
1517 encoded parameter in the incoming message. Bug 1558.
8dea5edf
JH
1518
1519JH/12 Bug 1527: Autogrow buffer used in reading spool files. Since they now
1520 include certificate info, eximon was claiming there were spoolfile
1521 syntax errors.
1522
3394b36a 1523JH/13 Bug 1521: Fix ldap lookup for single-attr request, multiple-attr return.
8dea5edf
JH
1524
1525JH/14 Log delivery-related information more consistently, using the sequence
1526 "H=<name> [<ip>]" wherever possible.
1527
3394b36a
TL
1528TL/07 Bug 1547: Omit RFCs from release. Draft and RFCs have licenses which
1529 are problematic for Debian distribution, omit them from the release
1530 tarball.
1531
ad4c5ff9
JH
1532JH/15 Updates and fixes to the EXPERIMENTAL_DSN feature.
1533
4c04137d 1534JH/16 Fix string representation of time values on 64bit time_t architectures.
ad4c5ff9
JH
1535 Bug 1561.
1536
1537JH/17 Fix a null-indirection in certextract expansions when a nondefault
1538 output list separator was used.
1539
8bc732e8 1540
1f0ebb98
TL
1541Exim version 4.84
1542-----------------
09728d20
TL
1543TL/01 Bugzilla 1506: Re-add a 'return NULL' to silence complaints from static
1544 checkers that were complaining about end of non-void function with no
1545 return.
1f0ebb98 1546
a612424f 1547JH/01 Bug 1513: Fix parsing of quoted parameter values in MIME headers.
4c04137d 1548 This was a regression introduced in 4.83 by another bugfix.
a612424f
JH
1549
1550JH/02 Fix broken compilation when EXPERIMENTAL_DSN is enabled.
1551
1552TL/02 Bug 1509: Fix exipick for enhanced spoolfile specification used when
a9b8ec8b 1553 EXPERIMENTAL_DSN is enabled. Fix from Wolfgang Breyha.
a612424f 1554
1f0ebb98 1555
c0e56233
TF
1556Exim version 4.83
1557-----------------
1558
1559TF/01 Correctly close the server side of TLS when forking for delivery.
1560
1561 When a message was received over SMTP with TLS, Exim failed to clear up
1562 the incoming connection properly after forking off the child process to
1563 deliver the message. In some situations the subsequent outgoing
1564 delivery connection happened to have the same fd number as the incoming
1565 connection previously had. Exim would try to use TLS and fail, logging
1566 a "Bad file descriptor" error.
1567
7245734e
TF
1568TF/02 Portability fix for building lookup modules on Solaris when the xpg4
1569 utilities have not been installed.
1570
fd5dad68
JH
1571JH/01 Fix memory-handling in use of acl as a conditional; avoid free of
1572 temporary space as the ACL may create new global variables.
1573
5428a946
TL
1574TL/01 LDAP support uses per connection or global context settings, depending
1575 upon the detected version of the libraries at build time.
1576
a3c86431
TL
1577TL/02 Experimental Proxy Protocol support: allows a proxied SMTP connection
1578 to extract and use the src ip:port in logging and expansions as if it
8ded8589
TL
1579 were a direct connection from the outside internet. PPv2 support was
1580 updated based on HAProxy spec change in May 2014.
a3c86431 1581
aa26e137
JH
1582JH/02 Add ${listextract {number}{list}{success}{fail}}.
1583
5a1b8443
WB
1584TL/03 Bugzilla 1433: Fix DMARC SEGV with specific From header contents.
1585 Properly escape header and check for NULL return.
1586
72c9e342
PP
1587PP/01 Continue incomplete 4.82 PP/19 by fixing docs too: use dns_dnssec_ok
1588 not dns_use_dnssec.
1589
76f44207
WB
1590JH/03 Bugzilla 1157: support log_selector smtp_confirmation for lmtp.
1591
770747fd
MFM
1592TL/04 Add verify = header_names_ascii check to reject email with non-ASCII
1593 characters in header names, implemented as a verify condition.
1594 Contributed by Michael Fischer v. Mollard.
1595
8ddef691 1596TL/05 Rename SPF condition results err_perm and err_temp to standardized
982650ec
TL
1597 results permerror and temperror. Previous values are deprecated but
1598 still accepted. In a future release, err_perm and err_temp will be
1599 completely removed, which will be a backward incompatibility if the
1600 ACL tests for either of these two old results. Patch contributed by
8ddef691 1601 user bes-internal on the mailing list.
c0e56233 1602
b9c2e32f
AR
1603JH/04 Add ${utf8clean:} operator. Contributed by Alex Rau.
1604
e45a1c37
JH
1605JH/05 Bugzilla 305: Log incoming-TLS details on rejects, subject to log
1606 selectors, in both main and reject logs.
1607
67d81c10
JH
1608JH/06 Log outbound-TLS and port details, subject to log selectors, for a
1609 failed delivery.
1610
b1f8e4f8
JH
1611JH/07 Add malware type "sock" for talking to simple daemon.
1612
511a6c14 1613JH/08 Bugzilla 1371: Add tls_{,try_}verify_hosts to smtp transport.
511a6c14
JH
1614
1615JH/09 Bugzilla 1431: Support (with limitations) headers_add/headers_remove in
1616 routers/transports under cutthrough routing.
214042d2 1617
51c7471d
JH
1618JH/10 Bugzilla 1005: ACL "condition =" should accept values which are negative
1619 numbers. Touch up "bool" conditional to keep the same definition.
1620
3695be34
TL
1621TL/06 Remove duplicated language in spec file from 4.82 TL/16.
1622
1e06383a
TL
1623JH/11 Add dnsdb tlsa lookup. From Todd Lyons.
1624
76146973
JH
1625JH/12 Expand items in router/transport headers_add or headers_remove lists
1626 individually rather than the list as a whole. Bug 1452.
1627
1628 Required for reasonable handling of multiple headers_ options when
1629 they may be empty; requires that headers_remove items with embedded
1630 colons must have them doubled (or the list-separator changed).
1631
8c8b8274
TL
1632TL/07 Add new dmarc expansion variable $dmarc_domain_policy to directly
1633 view the policy declared in the DMARC record. Currently, $dmarc_status
1634 is a combined value of both the record presence and the result of the
1635 analysis.
b1f8e4f8 1636
35aba663
JH
1637JH/13 Fix handling of $tls_cipher et.al. in (non-verify) transport. Bug 1455.
1638
8c51eead 1639JH/14 New options dnssec_request_domains, dnssec_require_domains on the
578897ea
JH
1640 dnslookup router and the smtp transport (applying to the forward
1641 lookup).
8c51eead 1642
deae092e
HS
1643TL/08 Bugzilla 1453: New LDAP "SERVERS=" option allows admin to override list
1644 of ldap servers used for a specific lookup. Patch provided by Heiko
1645 Schlichting.
35aba663 1646
fd3b6a4a 1647JH/18 New options dnssec_lax, dnssec_strict on dnsdb lookups.
4e0983dc 1648 New variable $lookup_dnssec_authenticated for observability.
fd3b6a4a 1649
8d91c6dc
LT
1650TL/09 Bugzilla 609: Add -C option to exiqgrep, specify which exim.conf to use.
1651 Patch submitted by Lars Timman.
1652
2b4a568d
JH
1653JH/19 EXPERIMENTAL_OCSP support under GnuTLS. Bug 1459.
1654
d2af03f4
HS
1655TL/10 Bugzilla 1454: New -oMm option to pass message reference to Exim.
1656 Requires trusted mode and valid format message id, aborts otherwise.
1657 Patch contributed by Heiko Schlichting.
1658
9d1c15ef
JH
1659JH/20 New expansion variables tls_(in,out)_(our,peer)cert, and expansion item
1660 certextract with support for various fields. Bug 1358.
1661
44662487
JH
1662JH/21 Observability of OCSP via variables tls_(in,out)_ocsp. Stapling
1663 is requested by default, modifiable by smtp transport option
6a8a60e0
JH
1664 hosts_request_ocsp.
1665
ed3bba5f 1666JH/22 Expansion operators ${md5:string} and ${sha1:string} can now
6a8a60e0 1667 operate on certificate variables to give certificate fingerprints
9ef9101c 1668 Also new ${sha256:cert_variable}.
44662487 1669
8ccd00b1
JH
1670JH/23 The PRDR feature is moved from being Experimental into the mainline.
1671
8ded8589
TL
1672TL/11 Bug 1119: fix memory allocation in string_printing2(). Patch from
1673 Christian Aistleitner.
1674
f2de3a33
JH
1675JH/24 The OCSP stapling feature is moved from Experimental into the mainline.
1676
6eb02f88
TL
1677TL/12 Bug 1444: Fix improper \r\n sequence handling when writing spool
1678 file. Patch from Wolfgang Breyha.
1679
00bff6f6
JH
1680JH/25 Expand the coverage of the delivery $host and $host_address to
1681 client authenticators run in verify callout. Bug 1476.
1682
071c51f7
JH
1683JH/26 Port service names are now accepted for tls_on_connect_ports, to
1684 align with daemon_smtp_ports. Bug 72.
1685
a6d4c44e
TF
1686TF/03 Fix udpsend. The ip_connectedsocket() function's socket type
1687 support and error reporting did not work properly.
1688
3ae173e7
ACK
1689TL/13 Bug 1495: Exiqgrep check if -C config file specified on cli exists
1690 and is readable. Patch from Andrew Colin Kissa.
1691
c13d09b8
TL
1692TL/14 Enhance documentation of ${run expansion and how it parses the
1693 commandline after expansion, particularly in the case when an
1694 unquoted variable expansion results in an empty value.
1695
0df4ab80
JH
1696JH/27 The TLS SNI feature was broken in 4.82. Fix it.
1697
66be95e0
PP
1698PP/02 Fix internal collision of T_APL on systems which support RFC3123
1699 by renaming away from it. Addresses GH issue 15, reported by
1700 Jasper Wallace.
1701
1bd0d12b
JH
1702JH/28 Fix parsing of MIME headers for parameters with quoted semicolons.
1703
0de7239e
TL
1704TL/15 SECURITY: prevent double expansion in math comparison functions
1705 (can expand unsanitized data). Not remotely exploitable.
1706 CVE-2014-2972
1707
fd3b6a4a 1708
2c422e6f 1709Exim version 4.82
98a90c36
PP
1710-----------------
1711
1712PP/01 Add -bI: framework, and -bI:sieve for querying sieve capabilities.
1713
12f69989
PP
1714PP/02 Make -n do something, by making it not do something.
1715 When combined with -bP, the name of an option is not output.
1716
54c90be1
PP
1717PP/03 Added tls_dh_min_bits SMTP transport driver option, only honoured
1718 by GnuTLS.
1719
1f4a55da
PP
1720PP/04 First step towards DNSSEC, provide $sender_host_dnssec for
1721 $sender_host_name and config options to manage this, and basic check
1722 routines.
1723
13363eba 1724PP/05 DSCP support for outbound connections and control modifier for inbound.
36a3ae5f 1725
66645890 1726PP/06 Cyrus SASL: set local and remote IP;port properties for driver.
e402235f
PP
1727 (Only plugin which currently uses this is kerberos4, which nobody should
1728 be using, but we should make it available and other future plugins might
1729 conceivably use it, even though it would break NAT; stuff *should* be
1730 using channel bindings instead).
66645890 1731
a3fb9793 1732PP/07 Handle "exim -L <tag>" to indicate to use syslog with tag as the process
f4ee74ac
PP
1733 name; added for Sendmail compatibility; requires admin caller.
1734 Handle -G as equivalent to "control = suppress_local_fixups" (we used to
1735 just ignore it); requires trusted caller.
a3fb9793 1736 Also parse but ignore: -Ac -Am -X<logfile>
f4ee74ac 1737 Bugzilla 1117.
a3fb9793 1738
d27f98fe 1739TL/01 Bugzilla 1258 - Refactor MAIL FROM optional args processing.
98a90c36 1740
6822b909
TL
1741TL/02 Add +smtp_confirmation as a default logging option.
1742
e7568d51
TL
1743TL/03 Bugzilla 198 - Implement remove_header ACL modifier.
1744 Patch by Magnus Holmgren from 2007-02-20.
1745
ae0e32ee 1746TL/04 Bugzilla 1281 - Spec typo.
ca0ff207 1747 Bugzilla 1283 - Spec typo.
97f42f10 1748 Bugzilla 1290 - Spec grammar fixes.
ca0ff207
TL
1749
1750TL/05 Bugzilla 1285 - Spec omission, fix docbook errors for spec.txt creation.
ae0e32ee 1751
e2658fff
TL
1752TL/06 Add Experimental DMARC support using libopendmarc libraries.
1753
83712b39
TL
1754TL/07 Fix an out of order global option causing a segfault. Reported to dev
1755 mailing list by by Dmitry Isaikin.
1756
976b7e9f
JH
1757JH/01 Bugzilla 1201 & 304 - New cutthrough-delivery feature, with TLS support.
1758
be4a1376
JH
1759JH/02 Support "G" suffix to numbers in ${if comparisons.
1760
ec4b68e5
PP
1761PP/08 Handle smtp transport tls_sni option forced-fail for OpenSSL.
1762
d7148a07
NM
1763NM/01 Bugzilla 1197 - Spec typo
1764 Bugzilla 1196 - Spec examples corrections
ec4b68e5 1765
585121e2 1766JH/03 Add expansion operators ${listnamed:name} and ${listcount:string}
ec4b68e5 1767
2519e60d
TL
1768PP/09 Add gnutls_allow_auto_pkcs11 option (was originally called
1769 gnutls_enable_pkcs11, but renamed to more accurately indicate its
1770 function.
a5f239e4 1771
13d08c90
PP
1772PP/10 Let Linux makefile inherit CFLAGS/CFLAGS_DYNAMIC.
1773 Pulled from Debian 30_dontoverridecflags.dpatch by Andreas Metzler.
1774
bef3ea7f
JH
1775JH/04 Add expansion item ${acl {name}{arg}...}, expansion condition
1776 "acl {{name}{arg}...}", and optional args on acl condition
1777 "acl = name arg..."
a5f239e4 1778
846726c5
JH
1779JH/05 Permit multiple router/transport headers_add/remove lines.
1780
3a796370
JH
1781JH/06 Add dnsdb pseudo-lookup "a+" to do an "aaaa" + "a" combination.
1782
ea722490 1783JH/07 Avoid using a waiting database for a single-message-only transport.
8b260705
PP
1784 Performance patch from Paul Fisher. Bugzilla 1262.
1785
b1b05573
JH
1786JH/08 Strip leading/trailing newlines from add_header ACL modifier data.
1787 Bugzilla 884.
1788
362145b5
JH
1789JH/09 Add $headers_added variable, with content from use of ACL modifier
1790 add_header (but not yet added to the message). Bugzilla 199.
1791
3c0a92dc
JH
1792JH/10 Add 8bitmime log_selector, for 8bitmime status on the received line.
1793 Pulled from Bugzilla 817 by Wolfgang Breyha.
1794
6d7c6175
PP
1795PP/11 SECURITY: protect DKIM DNS decoding from remote exploit.
1796 CVE-2012-5671
e78e6ecf 1797 (nb: this is the same fix as in Exim 4.80.1)
6d7c6175 1798
6f123593
JH
1799JH/11 Add A= logging on delivery lines, and a client_set_id option on
1800 authenticators.
1801
c8e2fc1e
JH
1802JH/12 Add optional authenticated_sender logging to A= and a log_selector
1803 for control.
1804
005ac57f
PP
1805PP/12 Unbreak server_set_id for NTLM/SPA auth, broken by 4.80 PP/29.
1806
3f1df0e3
PP
1807PP/13 Dovecot auth: log better reason to rejectlog if Dovecot did not
1808 advertise SMTP AUTH mechanism to us, instead of a generic
1809 protocol violation error. Also, make Exim more robust to bad
1810 data from the Dovecot auth socket.
1811
67bd1ab3
TF
1812TF/01 Fix ultimate retry timeouts for intermittently deliverable recipients.
1813
1814 When a queue runner is handling a message, Exim first routes the
1815 recipient addresses, during which it prunes them based on the retry
1816 hints database. After that it attempts to deliver the message to
1817 any remaining recipients. It then updates the hints database using
1818 the retry rules.
1819
1820 So if a recipient address works intermittently, it can get repeatedly
1821 deferred at routing time. The retry hints record remains fresh so the
1822 address never reaches the final cutoff time.
1823
1824 This is a fairly common occurrence when a user is bumping up against
1825 their storage quota. Exim had some logic in its local delivery code
1826 to deal with this. However it did not apply to per-recipient defers
1827 in remote deliveries, e.g. over LMTP to a separate IMAP message store.
1828
1ddeb334
TF
1829 This change adds a proper retry rule check during routing so that the
1830 final cutoff time is checked against the message's age. We only do
1831 this check if there is an address retry record and there is not a
1832 domain retry record; this implies that previous attempts to handle
1833 the address had the retry_use_local_parts option turned on. We use
1834 this as an approximation for the destination being like a local
1835 delivery, as in LMTP.
67bd1ab3
TF
1836
1837 I suspect this new check makes the old local delivery cutoff check
1838 redundant, but I have not verified this so I left the code in place.
1839
326cdc37
TF
1840TF/02 Correct gecos expansion when From: is a prefix of the username.
1841
1842 Test 0254 submits a message to Exim with the header
1843
1844 Resent-From: f
1845
1846 When I ran the test suite under the user fanf2, Exim expanded
1847 the header to contain my full name, whereas it should have added
1848 a Resent-Sender: header. It erroneously treats any prefix of the
1849 username as equal to the username.
1850
1851 This change corrects that bug.
1852
f62514b3
GF
1853GF/01 DCC debug and logging tidyup
1854 Error conditions log to paniclog rather than rejectlog.
1855 Debug lines prefixed by "DCC: " to remove any ambiguity.
1856
eb505532
TF
1857TF/03 Avoid unnecessary rebuilds of lookup-related code.
1858
14c7b357
PP
1859PP/14 Fix OCSP reinitialisation in SNI handling for Exim/TLS as server.
1860 Bug spotted by Jeremy Harris; was flawed since initial commit.
1861 Would have resulted in OCSP responses post-SNI triggering an Exim
1862 NULL dereference and crash.
1863
94eaf700
PP
1864JH/13 Add $router_name and $transport_name variables. Bugzilla 308.
1865
6f5a440a
PP
1866PP/15 Define SIOCGIFCONF_GIVES_ADDR for GNU Hurd.
1867 Bug detection, analysis and fix by Samuel Thibault.
1868 Bugzilla 1331, Debian bug #698092.
1869
514ee161
SC
1870SC/01 Update eximstats to watch out for senders sending 'HELO [IpAddr]'
1871
fd98a5c6
JH
1872JH/14 SMTP PRDR (http://www.eric-a-hall.com/specs/draft-hall-prdr-00.txt).
1873 Server implementation by Todd Lyons, client by JH.
1874 Only enabled when compiled with EXPERIMENTAL_PRDR. A new
1875 config variable "prdr_enable" controls whether the server
1876 advertises the facility. If the client requests PRDR a new
1877 acl_data_smtp_prdr ACL is called once for each recipient, after
1878 the body content is received and before the acl_smtp_data ACL.
4c04137d 1879 The client is controlled by both of: a hosts_try_prdr option
fd98a5c6
JH
1880 on the smtp transport, and the server advertisement.
1881 Default client logging of deliveries and rejections involving
1882 PRDR are flagged with the string "PRDR".
1883
035c7f1e
PP
1884PP/16 Fix problems caused by timeouts during quit ACLs trying to double
1885 fclose(). Diagnosis by Todd Lyons.
1886
ff284120
PP
1887PP/17 Update configure.default to handle IPv6 localhost better.
1888 Patch by Alain Williams (plus minor tweaks).
1889 Bugzilla 880.
1890
26e72755
PP
1891PP/18 OpenSSL made graceful with empty tls_verify_certificates setting.
1892 This is now consistent with GnuTLS, and is now documented: the
1893 previous undocumented portable approach to treating the option as
1894 unset was to force an expansion failure. That still works, and
1895 an empty string is now equivalent.
1896
0fbd9bff
PP
1897PP/19 Renamed DNSSEC-enabling option to "dns_dnssec_ok", to make it
1898 clearer that Exim is using the DO (DNSSEC OK) EDNS0 resolver flag,
1899 not performing validation itself.
1900
700d22f3
PP
1901PP/20 Added force_command boolean option to pipe transport.
1902 Patch from Nick Koston, of cPanel Inc.
1903
fcc8e047
JH
1904JH/15 AUTH support on callouts (and hence cutthrough-deliveries).
1905 Bugzilla 321, 823.
1906
4c04137d 1907TF/04 Added udpsend ACL modifier and hexquote expansion operator
7142daca 1908
8c020188
PP
1909PP/21 Fix eximon continuous updating with timestamped log-files.
1910 Broken in a format-string cleanup in 4.80, missed when I repaired the
1911 other false fix of the same issue.
1912 Report and fix from Heiko Schlichting.
1913 Bugzilla 1363.
1914
d13cdd30
PP
1915PP/22 Guard LDAP TLS usage against Solaris LDAP variant.
1916 Report from Prashanth Katuri.
1917
e2fbf4a2
PP
1918PP/23 Support safari_ecdhe_ecdsa_bug for openssl_options.
1919 It's SecureTransport, so affects any MacOS clients which use the
1920 system-integrated TLS libraries, including email clients.
1921
f4c1088b
PP
1922PP/24 Fix segfault from trying to fprintf() to a NULL stdio FILE* if
1923 using a MIME ACL for non-SMTP local injection.
1924 Report and assistance in diagnosis by Warren Baker.
1925
c5c2182f
PP
1926TL/08 Adjust exiqgrep to be case-insensitive for sender/receiver.
1927
73431ca9
JH
1928JH/16 Fix comparisons for 64b. Bugzilla 1385.
1929
2d07a215
TL
1930TL/09 Add expansion variable $authenticated_fail_id to keep track of
1931 last id that failed so it may be referenced in subsequent ACL's.
1932
a30a8861
TL
1933TL/10 Bugzilla 1375 - Prevent TLS rebinding in ldap. Patch provided by
1934 Alexander Miroch.
1935
33382dd9
TL
1936TL/11 Bugzilla 1382 - Option ldap_require_cert overrides start_tls
1937 ldap library initialization, allowing self-signed CA's to be
1938 used. Also properly sets require_cert option later in code by
1939 using NULL (global ldap config) instead of ldap handle (per
1940 session). Bug diagnosis and testing by alxgomz.
6d7c6175 1941
046172e6
TL
1942TL/12 Enhanced documentation in the ratelimit.pl script provided in
1943 the src/util/ subdirectory.
1944
581d7bee 1945TL/13 Bug 1031 - Imported transport SQL logging patch from Axel Rau
1a7b746d 1946 renamed to Transport Post Delivery Action by Jeremy Harris, as
9bdd29ad
TL
1947 EXPERIMENTAL_TPDA.
1948
1949TL/14 Bugzilla 1217 - Redis lookup support has been added. It is only enabled
1950 when Exim is compiled with EXPERIMENTAL_REDIS. A new config variable
1951 redis_servers = needs to be configured which will be used by the redis
1952 lookup. Patch from Warren Baker, of The Packet Hub.
1953
237b2cf2
TL
1954TL/15 Fix exiqsumm summary for corner case. Patch provided by Richard Hall.
1955
9fc5a352
TL
1956TL/16 Bugzilla 1289 - Clarify host/ip processing when have errors looking up a
1957 hostname or reverse DNS when processing a host list. Used suggestions
1958 from multiple comments on this bug.
1a7b746d 1959
b10e4ec2
TL
1960TL/17 Bugzilla 1057 - Multiple clamd TCP targets patch from Mark Zealey.
1961
e2cebd74
TL
1962TL/18 Had previously added a -CONTINUE option to runtest in the test suite.
1963 Missed a few lines, added it to make the runtest require no keyboard
1964 interaction.
1965
1966TL/19 Bugzilla 1402 - Test 533 fails if any part of the path to the test suite
1967 contains upper case chars. Make router use caseful_local_part.
1968
2519e60d
TL
1969TL/20 Bugzilla 1400 - Add AVOID_GNUTLS_PKCS11 build option. Allows GnuTLS
1970 support when GnuTLS has been built with p11-kit.
1971
e78e6ecf 1972
4263f395
PP
1973Exim version 4.80.1
1974-------------------
1975
1976PP/01 SECURITY: protect DKIM DNS decoding from remote exploit.
1977 CVE-2012-5671
2c422e6f 1978 This, or similar/improved, will also be change PP/11 of 4.82.
3c0a92dc 1979
ea722490 1980
b1770b6e 1981Exim version 4.80
0599f9cf
PP
1982-----------------
1983
1984PP/01 Handle short writes when writing local log-files.
1985 In practice, only affects FreeBSD (8 onwards).
1986 Bugzilla 1053, with thanks to Dmitry Isaikin.
1987
23c7e742
NM
1988NM/01 Bugzilla 949 - Documentation tweak
1989
b322aac8
NM
1990NM/02 Bugzilla 1093 - eximstats DATA reject detection regexps
1991 improved.
1992
4a891427
NM
1993NM/03 Bugzilla 1169 - primary_hostname spelling was incorrect in docs.
1994
c1e794ba 1995PP/02 Implemented gsasl authenticator.
b322aac8 1996
97753960
PP
1997PP/03 Implemented heimdal_gssapi authenticator with "server_keytab" option.
1998
1999PP/04 Local/Makefile support for (AUTH|LOOKUP)_*_PC=foo to use
2000 `pkg-config foo` for cflags/libs.
2001
df6303fa
PP
2002PP/05 Swapped $auth1/$auth2 for gsasl GSSAPI mechanism, to be more consistent
2003 with rest of GSASL and with heimdal_gssapi.
2004
7e6a8985
PP
2005PP/06 Local/Makefile support for USE_(GNUTLS|OPENSSL)_PC=foo to use
2006 `pkg-config foo` for cflags/libs for the TLS implementation.
2007
f1e05cc7 2008PP/07 New expansion variable $tls_bits; Cyrus SASL server connection
20aa9dbd
PP
2009 properties get this fed in as external SSF. A number of robustness
2010 and debugging improvements to the cyrus_sasl authenticator.
b322aac8 2011
4c287009
PP
2012PP/08 cyrus_sasl server now expands the server_realm option.
2013
b98bb9ac
PP
2014PP/09 Bugzilla 1214 - Log authentication information in reject log.
2015 Patch by Jeremy Harris.
2016
4a6a987a
PP
2017PP/10 Added dbmjz lookup type.
2018
c45dd180 2019PP/11 Let heimdal_gssapi authenticator take a SASL message without an authzid.
c7955b11 2020
7db8d074
PP
2021PP/12 MAIL args handles TAB as well as SP, for better interop with
2022 non-compliant senders.
2023 Analysis and variant patch by Todd Lyons.
2024
eae0036b 2025NM/04 Bugzilla 1237 - fix cases where printf format usage not indicated
cfab9d68 2026 Bug report from Lars Müller <lars@samba.org> (via SUSE),
e0df1c83
DM
2027 Patch from Dirk Mueller <dmueller@suse.com>
2028
dec5017e
PP
2029PP/13 tls_peerdn now print-escaped for spool files.
2030 Observed some $tls_peerdn in wild which contained \n, which resulted
2031 in spool file corruption.
2032
c80c5570
PP
2033PP/14 TLS fixes for OpenSSL: support TLS 1.1 & 1.2; new "openssl_options"
2034 values; set SSL_MODE_AUTO_RETRY so that OpenSSL will retry a read
2035 or write after TLS renegotiation, which otherwise led to messages
2036 "Got SSL error 2".
2037
076b11e2
PP
2038TK/01 Bugzilla 1239 - fix DKIM verification when signature was not inserted
2039 as a tracking header (ie: a signed header comes before the signature).
2040 Patch from Wolfgang Breyha.
2041
5407bfff
JH
2042JH/01 Bugzilla 660 - Multi-valued attributes from ldap now parseable as a
2043 comma-sep list; embedded commas doubled.
2044
9e45c72b
PP
2045JH/02 Refactored ACL "verify =" logic to table-driven dispatch.
2046
e74376d8
PP
2047PP/15 LDAP: Check for errors of TLS initialisation, to give correct
2048 diagnostics.
2049 Report and patch from Dmitry Banschikov.
2050
4c04137d 2051PP/16 Removed "dont_insert_empty_fragments" from "openssl_options".
da3ad30d
PP
2052 Removed SSL_clear() after SSL_new() which led to protocol negotiation
2053 failures. We appear to now support TLS1.1+ with Exim.
2054
7be682ca
PP
2055PP/17 OpenSSL: new expansion var $tls_sni, which if used in tls_certificate
2056 lets Exim select keys and certificates based upon TLS SNI from client.
3f0945ff
PP
2057 Also option tls_sni on SMTP Transports. Also clear $tls_bits correctly
2058 before an outbound SMTP session. New log_selector, +tls_sni.
7be682ca 2059
ef840681
PP
2060PP/18 Bugzilla 1122 - check localhost_number expansion for failure, avoid
2061 NULL dereference. Report and patch from Alun Jones.
2062
5bfb4cdf
PP
2063PP/19 DNS resolver init changes for NetBSD compatibility. (Risk of breakage
2064 on less well tested platforms). Obviates NetBSD pkgsrc patch-ac.
2065 Not seeing resolver debug output on NetBSD, but suspect this is a
2066 resolver implementation change.
2067
c6e95d22
PP
2068PP/20 Revert part of NM/04, it broke log_path containing %D expansions.
2069 Left warnings. Added "eximon gdb" invocation mode.
2070
9cbad13b
PP
2071PP/21 Defaulting "accept_8bitmime" to true, not false.
2072
9ee44efb
PP
2073PP/22 Added -bw for inetd wait mode support.
2074
6a6084f8
PP
2075PP/23 Added PCRE_CONFIG=yes support to Makefile for using pcre-config to
2076 locate the relevant includes and libraries. Made this the default.
2077
12dd53c7
PP
2078PP/24 Fixed headers_only on smtp transports (was not sending trailing dot).
2079 Bugzilla 1246, report and most of solution from Tomasz Kusy.
2080
9e45c72b 2081JH/03 ${eval } now uses 64-bit and supports a "g" suffix (like to "k" and "m").
97d17305
JH
2082 This may cause build issues on older platforms.
2083
17c76198
PP
2084PP/25 Revamped GnuTLS support, passing tls_require_ciphers to
2085 gnutls_priority_init, ignoring Exim options gnutls_require_kx,
2086 gnutls_require_mac & gnutls_require_protocols (no longer supported).
2087 Added SNI support via GnuTLS too.
af3498d6 2088 Made ${randint:..} supplier available, if using not-too-old GnuTLS.
17c76198 2089
53947857 2090PP/26 Added EXPERIMENTAL_OCSP for OpenSSL.
3f7eeb86 2091
eae0036b 2092PP/27 Applied dnsdb SPF support patch from Janne Snabb.
8ee4b30e
PP
2093 Applied second patch from Janne, implementing suggestion to default
2094 multiple-strings-in-record handling to match SPF spec.
eae0036b 2095
9e45c72b 2096JH/04 Added expansion variable $tod_epoch_l for a higher-precision time.
2605c55b 2097
7390e768
PP
2098PP/28 Fix DCC dcc_header content corruption (stack memory referenced,
2099 read-only, out of scope).
2100 Patch from Wolfgang Breyha, report from Stuart Northfield.
2101
08488c86
PP
2102PP/29 Fix three issues highlighted by clang analyser static analysis.
2103 Only crash-plausible issue would require the Cambridge-specific
2104 iplookup router and a misconfiguration.
2105 Report from Marcin Mirosław.
2106
6475bd82
PP
2107PP/30 Another attempt to deal with PCRE_PRERELEASE, this one less buggy.
2108
81f91683
PP
2109PP/31 %D in printf continues to cause issues (-Wformat=security), so for
2110 now guard some of the printf checks behind WANT_DEEPER_PRINTF_CHECKS.
2111 As part of this, removing so much warning spew let me fix some minor
2112 real issues in debug logging.
2113
5779e6aa
PP
2114PP/32 GnuTLS was always using default tls_require_ciphers, due to a missing
2115 assignment on my part. Fixed.
2116
3375e053
PP
2117PP/33 Added tls_dh_max_bits option, defaulting to current hard-coded limit
2118 of NSS, for GnuTLS/NSS interop. Problem root cause diagnosis by
2119 Janne Snabb (who went above and beyond: thank you).
2120
2121PP/34 Validate tls_require_ciphers on startup, since debugging an invalid
2122 string otherwise requires a connection and a bunch more work and it's
78e0c7a3
PP
2123 relatively easy to get wrong. Should also expose TLS library linkage
2124 problems.
3375e053 2125
9d26b8c0
PP
2126PP/35 Pull in <features.h> on Linux, for some portability edge-cases of
2127 64-bit ${eval} (JH/03).
2128
57eb9e91 2129PP/36 Define _GNU_SOURCE in exim.h; it's needed for some releases of
b87a6e0e
PP
2130 GNU libc to support some of the 64-bit stuff, should not lead to
2131 conflicts. Defined before os.h is pulled in, so if a given platform
2132 needs to override this, it can.
2133
16880d1a
PP
2134PP/37 Unbreak Cyrus SASL auth: SSF retrieval was incorrect, Exim thought
2135 protection layer was required, which is not implemented.
2136 Bugzilla 1254, patch from Wolfgang Breyha.
2137
a799883d
PP
2138PP/38 Overhaul DH prime handling, supply RFC-specified DH primes as built
2139 into Exim, default to IKE id 23 from RFC 5114 (2048 bit). Make
2140 tls_dhparam take prime identifiers. Also unbreak combination of
2141 OpenSSL+DH_params+TLSSNI.
2142
3ecab157 2143PP/39 Disable SSLv2 by default in OpenSSL support.
f0f5a555 2144
0599f9cf 2145
867fcbf5
PP
2146Exim version 4.77
2147-----------------
2148
2149PP/01 Solaris build fix for Oracle's LDAP libraries.
2150 Bugzilla 1109, patch from Stephen Usher.
2151
f1a29782
TF
2152TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
2153
ab42bd23
TK
2154TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
2155 whitespace trailer
867fcbf5 2156
0ca0cf52
TF
2157TF/02 Fix a couple more cases where we did not log the error message
2158 when unlink() failed. See also change 4.74-TF/03.
2159
921b12ca
TF
2160TF/03 Make the exiwhat support code safe for signals. Previously Exim might
2161 lock up or crash if it happened to be inside a call to libc when it
2162 got a SIGUSR1 from exiwhat.
2163
2164 The SIGUSR1 handler appends the current process status to the process
2165 log which is later printed by exiwhat. It used to use the general
2166 purpose logging code to do this, but several functions it calls are
2167 not safe for signals.
2168
2169 The new output code in the SIGUSR1 handler is specific to the process
2170 log, and simple enough that it's easy to inspect for signal safety.
2171 Removing some special cases also simplifies the general logging code.
2172 Removing the spurious timestamps from the process log simplifies
2173 exiwhat.
2174
c99ce5c9
TF
2175TF/04 Improved ratelimit ACL condition.
2176
2177 The /noupdate option has been deprecated in favour of /readonly which
2178 has clearer semantics. The /leaky, /strict, and /readonly update modes
2179 are mutually exclusive. The update mode is no longer included in the
2180 database key; it just determines when the database is updated. (This
4c04137d 2181 means that when you upgrade Exim will forget old rate measurements.)
c99ce5c9
TF
2182
2183 Exim now checks that the per_* options are used with an update mode that
2184 makes sense for the current ACL. For example, when Exim is processing a
2185 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
2186 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
2187 must specify per_mail/readonly. If you omit the update mode it defaults to
2188 /leaky where that makes sense (as before) or /readonly where required.
2189
2190 The /noupdate option is now undocumented but still supported for
2191 backwards compatibility. It is equivalent to /readonly except that in
2192 ACLs where /readonly is required you may specify /leaky/noupdate or
2193 /strict/noupdate which are treated the same as /readonly.
2194
2195 A useful new feature is the /count= option. This is a generalization
2196 of the per_byte option, so that you can measure the throughput of other
2197 aggregate values. For example, the per_byte option is now equivalent
2198 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
2199
2200 The per_rcpt option has been generalized using the /count= mechanism
2201 (though it's more complicated than the per_byte equivalence). When it is
2202 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
2203 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
2204 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
2205 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
2206 Note that using per_rcpt with a non-readonly update mode in more than
2207 one ACL will cause the recipients to be double-counted. (The per_mail
2208 and per_byte options don't have this problem.)
2209
2210 The handling of very low rates has changed slightly. If the computed rate
2211 is less than the event's count (usually one) then this event is the first
2212 after a long gap. In this case the rate is set to the same as this event's
2213 count, so that the first message of a spam run is counted properly.
2214
2215 The major new feature is a mechanism for counting the rate of unique
2216 events. The new per_addr option counts the number of different
2217 recipients that someone has sent messages to in the last time period. It
2218 behaves like per_rcpt if all the recipient addresses are different, but
2219 duplicate recipient addresses do not increase the measured rate. Like
2220 the /count= option this is a general mechanism, so the per_addr option
2221 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
2222 example, measure the rate that a client uses different sender addresses
2223 with the options per_mail/unique=$sender_address. There are further
2224 details in the main documentation.
2225
3634fc25
TF
2226TF/05 Removed obsolete $Cambridge$ CVS revision strings.
2227
792e8a19
TF
2228TF/06 Removed a few PCRE remnants.
2229
5901f0ab
TF
2230TF/07 Automatically extract Exim's version number from tags in the git
2231 repository when doing development or release builds.
2232
7f2a2a43
PP
2233PP/02 Raise smtp_cmd_buffer_size to 16kB.
2234 Bugzilla 879. Patch from Paul Fisher.
e2ca7082 2235
061b7ebd
PP
2236PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
2237 Heavily based on revision 40f9a89a from Simon Arlott's tree.
2238 Bugzilla 97.
2239
e12f8c32
PP
2240PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
2241
9e949f00 2242PP/05 Variable $av_failed, true if the AV scanner deferred.
7f2a2a43
PP
2243 Bugzilla 1078. Patch from John Horne.
2244
2245PP/06 Stop make process more reliably on build failure.
2246 Bugzilla 1087. Patch from Heiko Schlittermann.
9e949f00 2247
555ae6af 2248PP/07 Make maildir_use_size_file an _expandable_ boolean.
ac53fcda
PP
2249 Bugzilla 1089. Patch from Heiko Schlittermann.
2250
2251PP/08 Handle ${run} returning more data than OS pipe buffer size.
2252 Bugzilla 1131. Patch from Holger Weiß.
555ae6af 2253
6f7fe114
PP
2254PP/09 Handle IPv6 addresses with SPF.
2255 Bugzilla 860. Patch from Wolfgang Breyha.
2256
c566dd90
PP
2257PP/10 GnuTLS: support TLS 1.2 & 1.1.
2258 Bugzilla 1156.
89f897c3
PP
2259 Use gnutls_certificate_verify_peers2() [patch from Andreas Metzler].
2260 Bugzilla 1095.
c566dd90 2261
d6cc7c78 2262PP/11 match_* no longer expand right-hand-side by default.
39257585
PP
2263 New compile-time build option, EXPAND_LISTMATCH_RHS.
2264 New expansion conditions, "inlist", "inlisti".
2265
0d0e4455
PP
2266PP/12 fix uninitialised greeting string from PP/03 (smtps client support).
2267
3399bb60 2268PP/13 shell and compiler warnings fixes for RC1-RC4 changes.
d690cbdc
PP
2269
2270PP/14 fix log_write() format string regression from TF/03.
2271 Bugzilla 1152. Patch from Dmitry Isaikin.
2272
0ca0cf52 2273
10906672
PP
2274Exim version 4.76
2275-----------------
2276
2277PP/01 The new ldap_require_cert option would segfault if used. Fixed.
2278
754a0503
PP
2279PP/02 Harmonised TLS library version reporting; only show if debugging.
2280 Layout now matches that introduced for other libraries in 4.74 PP/03.
2281
c0c7b2da
PP
2282PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
2283
e97d1f08
PP
2284PP/04 New "dns_use_edns0" global option.
2285
084c1d8c
PP
2286PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
2287 Bugzilla 1098.
2288
4e7ee012
PP
2289PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
2290 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 2291
c8d52a00
PP
2292TK/01 Updated PolarSSL code to 0.14.2.
2293 Bugzilla 1097. Patch from Andreas Metzler.
2294
54e7ce4a
PP
2295PP/07 Catch divide-by-zero in ${eval:...}.
2296 Fixes bugzilla 1102.
2297
5ee6f336
PP
2298PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
2299 Bugzilla 1104.
2300
c8d52a00 2301TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
2302 format-string attack -- SECURITY: remote arbitrary code execution.
2303
2304TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
2305 time unintentionally subject to list matching rules, letting the header
2306 cause arbitrary Exim lookups (of items which can occur in lists, *not*
2307 arbitrary string expansion). This allowed for information disclosure.
2308
2309PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
2310 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 2311
10906672 2312
aa097c4c
NM
2313Exim version 4.75
2314-----------------
2315
4c04137d 2316NM/01 Workaround for PCRE version dependency in version reporting
aa097c4c
NM
2317 Bugzilla 1073
2318
7f3d9eff
TF
2319TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
2320 This fixes portability to compilers other than gcc, notably
2321 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
2322
159f52d2
TF
2323TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
2324 makefiles for portability to HP-UX and POSIX correctness.
2325
0cc9542a
PP
2326PP/01 Permit LOOKUP_foo enabling on the make command-line.
2327 Also via indented variable definition in the Makefile.
2328 (Debugging by Oliver Heesakkers).
2329
f7274286
PP
2330PP/02 Restore caching of spamd results with expanded spamd_address.
2331 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
2332
7b797365
PP
2333PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
2334 Improves build reliability. Fix from: Frank Elsner
2335
caacae52
NM
2336NM/02 Fix wide character breakage in the rfc2047 coding
2337 Fixes bug 1064. Patch from Andrey N. Oktyabrski
2338
09dcaba9
NM
2339NM/03 Allow underscore in dnslist lookups
2340 Fixes bug 1026. Patch from Graeme Fowler
2341
bc19a55b
PP
2342PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
2343 Code patches from Adam Ciarcinski of NetBSD.
caacae52 2344
bd4c9759
NM
2345NM/04 Fixed exiqgrep to cope with mailq missing size issue
2346 Fixes bug 943.
2347
b72aab72
PP
2348PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
2349 is logged, to avoid truncation. Patch from John Horne.
2350
2fe76745
PP
2351PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
2352 Patch from Jakob Hirsch.
2353
76aa570c
PP
2354PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
2355 SQL string expansion failure details.
2356 Patch from Andrey Oktyabrski.
2357
f1e5fef5
PP
2358PP/08 Bugzilla 486: implement %M datestamping in log filenames.
2359 Patch from Simon Arlott.
2360
4d805ee9
PP
2361PP/09 New lookups functionality failed to compile on old gcc which rejects
2362 extern declarations in function scope.
2363 Patch from Oliver Fleischmann
2364
cd59ab18
PP
2365PP/10 Use sig_atomic_t for flags set from signal handlers.
2366 Check getgroups() return and improve debugging.
2367 Fixed developed for diagnosis in bug 927 (which turned out to be
2368 a kernel bug).
2369
332f5cf3
PP
2370PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
2371 Patch from Mark Zealey.
2372
29cfeb94
PP
2373PP/12 Bugzilla 1056: Improved spamd server selection.
2374 Patch from Mark Zealey.
2375
660242ad
PP
2376PP/13 Bugzilla 1086: Deal with maildir quota file races.
2377 Based on patch from Heiko Schlittermann.
2378
bc4bc4c5
PP
2379PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
2380 Patch from Uwe Doering, sign-off by Michael Haardt.
2381
2e64baa9
NM
2382NM/05 Fix to spam.c to accommodate older gcc versions which dislike
2383 variable declaration deep within a block. Bug and patch from
2384 Dennis Davis.
2385
4c04137d 2386PP/15 lookups-Makefile IRIX compatibility coercion.
bddd7526 2387
6bac1a9a
PP
2388PP/16 Make DISABLE_DKIM build knob functional.
2389
552193f0
NM
2390NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
2391 Patch by Simon Arlott
baeee2c1 2392
1b587e48
TF
2393TF/03 Fix valgrind.h portability to C89 compilers that do not support
2394 variable argument macros. Our copy now differs from upstream.
2395
aa097c4c 2396
8c07b69f
TF
2397Exim version 4.74
2398-----------------
2399
2400TF/01 Failure to get a lock on a hints database can have serious
2401 consequences so log it to the panic log.
2402
c0ea85ab
TF
2403TF/02 Log LMTP confirmation messages in the same way as SMTP,
2404 controlled using the smtp_confirmation log selector.
2405
0761d44e
TF
2406TF/03 Include the error message when we fail to unlink a spool file.
2407
0a349494
PP
2408DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
2409 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
2410 for maintaining out-of-tree patches for some time.
2411
2412PP/01 Bugzilla 139: Documentation and portability issues.
2413 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
2414 Handle per-OS dynamic-module compilation flags.
2415
fea24b2e
PP
2416PP/02 Let /dev/null have normal permissions.
2417 The 4.73 fixes were a little too stringent and complained about the
2418 permissions on /dev/null. Exempt it from some checks.
2419 Reported by Andreas M. Kirchwitz.
2420
6545de78
PP
2421PP/03 Report version information for many libraries, including
2422 Exim version information for dynamically loaded libraries. Created
2423 version.h, now support a version extension string for distributors
2424 who patch heavily. Dynamic module ABI change.
2425
1670ef10
PP
2426PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
2427 privilege escalation vulnerability whereby the Exim run-time user
2428 can cause root to append content of the attacker's choosing to
2429 arbitrary files.
2430
c0886197
PP
2431PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
2432 (Wolfgang Breyha)
2433
b7487bce
PP
2434PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
2435 If dropping privileges for untrusted macros, we disabled normal logging
2436 on the basis that it would fail; for the Exim run-time user, this is not
2437 the case, and it resulted in successful deliveries going unlogged.
2438 Fixed. Reported by Andreas Metzler.
2439
8c07b69f 2440
97fd1e48 2441Exim version 4.73
ed7f7860 2442-----------------
97fd1e48
PP
2443
2444PP/01 Date: & Message-Id: revert to normally being appended to a message,
2445 only prepend for the Resent-* case. Fixes regression introduced in
2446 Exim 4.70 by NM/22 for Bugzilla 607.
2447
6901c596
PP
2448PP/02 Include check_rfc2047_length in configure.default because we're seeing
2449 increasing numbers of administrators be bitten by this.
2450
a8c8d6b5
JJ
2451JJ/01 Added DISABLE_DKIM and comment to src/EDITME
2452
77bb000f
PP
2453PP/03 Bugzilla 994: added openssl_options main configuration option.
2454
a29e5231
PP
2455PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
2456
ec5a0394 2457PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 2458
55c75993
PP
2459PP/06 Adjust NTLM authentication to handle SASL Initial Response.
2460
453a6645 2461PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
2462 without a peer certificate, leading to a segfault because of an
2463 assumption that peers always have certificates. Be a little more
453a6645
PP
2464 paranoid. Problem reported by Martin Tscholak.
2465
8544e77a
PP
2466PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
2467 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
2468 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
2469 CL also introduces -bmalware, various -d+acl logging additions and
2470 more caution in buffer sizes.
8544e77a 2471
83e029d5
PP
2472PP/09 Implemented reverse_ip expansion operator.
2473
ed7f7860
PP
2474PP/10 Bugzilla 937: provide a "debug" ACL control.
2475
7d9f747b
PP
2476PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
2477
4b2241d2
PP
2478PP/12 Bugzilla 973: Implement --version.
2479
10385c15
PP
2480PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
2481
dbc4b90d
PP
2482PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
2483
532be449
PP
2484PP/15 Bugzilla 816: support multiple condition rules on Routers.
2485
6a8de854 2486PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
2487 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
2488 ignore trailing whitespace.
6a8de854 2489
5dc43717
JJ
2490JJ/02 prevent non-panic DKIM error from being sent to paniclog
2491
2492JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
2493 "exim" to be used
55c75993 2494
3346ab01
PP
2495PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
2496 Notification from Dr Andrew Aitchison.
2497
491fab4c
PP
2498PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
2499 ExtendedDetectionInfo response format.
2500 Notification from John Horne.
2501
13eb9497
PP
2502PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
2503 compatible.
2504
2505PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
2506 XSL and documented dependency on system catalogs, with examples of how
2507 it normally works.
2508
7f36d675
DW
2509DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
2510 access.
2511
c1d94452
DW
2512DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
2513 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
2514 configuration file which is writeable by the Exim user or group.
2515
e2f5dc15
DW
2516DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
2517 of configuration files to cover files specified with the -C option if
2518 they are going to be used with root privileges, not just the default
2519 configuration file.
2520
cd25e41d
DW
2521DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
2522 option (effectively making it always true).
2523
261dc43e
DW
2524DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
2525 files to be used while preserving root privileges.
2526
fa32850b
DW
2527DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
2528 that rogue child processes cannot use them.
2529
79d4bc3d
PP
2530PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
2531 run-time user, instead of root.
2532
43236f35 2533PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
2534 Exim run-time user without dropping privileges.
2535
fb08281f
DW
2536DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
2537 result string, instead of calling string_vformat() twice with the same
2538 arguments.
3346ab01 2539
74935b98
DW
2540DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
2541 for other users. Others should always drop root privileges if they use
2542 -C on the command line, even for a whitelisted configure file.
2543
90b6341f
DW
2544DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
2545
57730b52
ML
2546NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
2547
66581d1e 2548
465e92cf
JJ
2549Exim version 4.72
2550-----------------
2551
453a6645
PP
2552JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
2553 $data_path, and $header_path variables; fixed documentation bugs and
2554 typos
465e92cf 2555
453a6645
PP
2556JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
2557 exipick to access non-standard spools, including the "frozen" queue
2558 (Finput)
edae0343 2559
9bd3e22c
NM
2560NM/01 Bugzilla 965: Support mysql stored procedures.
2561 Patch from Alain Williams
2562
bb576ff7
NM
2563NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
2564
5a1a5845
NM
2565NM/03 Bugzilla 955: Documentation fix for max_rcpts.
2566 Patch from Andreas Metzler
2567
981a9fad
NM
2568NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
2569 Patch from Kirill Miazine
2570
7fc497ee
NM
2571NM/05 Bugzilla 671: Added umask to procmail example.
2572
1a41defa
JJ
2573JJ/03 installed exipick 20100323.0, fixing doc bug
2574
a466095c 2575NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 2576 directory. Notification and patch from Dan Rosenberg.
a466095c 2577
94a6bd0b
NM
2578TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
2579
2580TK/02 Improve log output when DKIM signing operation fails.
2581
2582MH/01 Treat the transport option dkim_domain as a colon separated
2583 list, not as a single string, and sign the message with each element,
2584 omitting multiple occurences of the same signer.
2585
c1b141a8
NM
2586NM/07 Null terminate DKIM strings, Null initialise DKIM variable
2587 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 2588
b26eacf1 2589NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
2590 Patch by Simon Arlott
2591
179c5980 2592PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 2593 MBX locking. Notification from Dan Rosenberg.
179c5980 2594
9bd3e22c 2595
7c6d71af
NM
2596Exim version 4.71
2597-----------------
2598
7d9f747b 2599TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 2600
f013fb92
NM
2601NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
2602
0eb8eedd
NM
2603NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
2604
663ee6d9
NM
2605NM/03 Bugzilla 847: Enable DNSDB lookup by default.
2606
177ebd9b
NM
2607NM/04 Bugzilla 915: Flag broken perl installation during build.
2608
7c6d71af 2609
210f147e
NM
2610Exim version 4.70
2611-----------------
2612
cdd3bb85 2613TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 2614 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
2615
2616TK/02 Write list of recipients to X-Envelope-Sender header when building
2617 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 2618 Hirsch).
cdd3bb85
TK
2619
2620TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
2621 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 2622 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
2623
2624TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
2625 by Mark Daniel Reidel <mr@df.eu>.
2626
210f147e
NM
2627NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
2628 When building exim an external PCRE library is now needed -
2629 PCRE is a system library on the majority of modern systems.
2630 See entry on PCRE_LIBS in EDITME file.
2631
deafd5b3
NM
2632NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
2633 conversation. Added nologin parameter to request.
7d9f747b 2634 Patch contributed by Kirill Miazine.
deafd5b3 2635
089793a4
TF
2636TF/01 Do not log submission mode rewrites if they do not change the address.
2637
5f16ca82
TF
2638TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
2639
dae9d94e 2640NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 2641 log files in place. Contributed by Roberto Lima.
dae9d94e 2642
7d9f747b 2643NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 2644
06864c44
TF
2645TF/03 Bugzilla 615: When checking the local_parts router precondition
2646 after a local_part_suffix or local_part_prefix option, Exim now
2647 does not use the address's named list lookup cache, since this
2648 contains cached lookups for the whole local part.
2649
65a7d8c3 2650NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 2651 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 2652
23510047 2653TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 2654
7d9f747b 2655NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 2656
7d8eec3a 2657NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 2658 Patch provided by Jan Srzednicki.
6c588e74 2659
89dec7b6
TF
2660TF/05 Leading white space used to be stripped from $spam_report which
2661 wrecked the formatting. Now it is preserved.
5f28a6e8 2662
a99de90c
TF
2663TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
2664 that they are available at delivery time.
2665
e2803e40
TF
2666TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
2667
7199e1ee
TF
2668TF/08 TLS error reporting now respects the incoming_interface and
2669 incoming_port log selectors.
2670
e276e04b
TF
2671TF/09 Produce a more useful error message if an SMTP transport's hosts
2672 setting expands to an empty string.
2673
ce552449 2674NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 2675 Patch provided by Phil Pennock.
ce552449 2676
e765a0f1 2677NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 2678 Patch provided by Richard Godbee.
e765a0f1 2679
4f054c63 2680NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 2681 acl_smtp_notquit, added index entry.
4f054c63 2682
7d9f747b
PP
2683NM/09 Bugzilla 787: Potential buffer overflow in string_format.
2684 Patch provided by Eugene Bujak.
24c929a2 2685
7d9f747b
PP
2686NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
2687 accept(). Patch provided by Maxim Dounin.
cf73943b 2688
b52bc06e 2689NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 2690 Patch provided by Phil Pennock.
b52bc06e 2691
447de4b0
NM
2692NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
2693
4c69d561 2694NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 2695 Patch provided by Brad "anomie" Jorsch.
4c69d561 2696
d5c39246 2697NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 2698 Patch provided by Dean Brooks.
9b989985 2699
0b23848a
TK
2700TK/05 Add native DKIM support (does not depend on external libraries).
2701
8f3414a1 2702NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 2703 Patch provided by Graeme Fowler.
e2aacdfd 2704
fb6f955d
NM
2705NM/16 Bugzilla 851: Documentation example syntax fix.
2706
2707NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 2708
7d9f747b
PP
2709NM/18 Bugzilla 894: Fix issue with very long lines including comments in
2710 lsearch.
dbb0bf41 2711
7d9f747b
PP
2712NM/19 Bugzilla 745: TLS version reporting.
2713 Patch provided by Phil Pennock.
f3766eb5 2714
7d9f747b
PP
2715NM/20 Bugzilla 167: bool: condition support.
2716 Patch provided by Phil Pennock.
36f12725 2717
7d9f747b
PP
2718NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
2719 clients. Patch provided by Phil Pennock.
e6060e2c 2720
7d9f747b
PP
2721NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
2722 Patch provided by Brad "anomie" Jorsch.
5eb690a1 2723
7d9f747b
PP
2724NM/23 Bugzilla 687: Fix misparses in eximstats.
2725 Patch provided by Heiko Schlittermann.
d5c13d66 2726
7d9f747b
PP
2727NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
2728 Patch provided by Heiko Schlittermann.
b2335c0b 2729
7d9f747b 2730NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 2731 plus update to original patch.
f4cd9433 2732
7d9f747b 2733NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 2734
7d9f747b
PP
2735NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
2736 Patch provided by David Brownlee.
8dc71ab3 2737
7d9f747b 2738NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 2739
7d9f747b 2740NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 2741
7d9f747b 2742NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 2743
7d9f747b 2744NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 2745
17792b53 2746NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 2747 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 2748
7d9f747b
PP
2749NM/33 Bugzilla 898: Transport filter timeout fix.
2750 Patch by Todd Rinaldo.
52383f8f 2751
91576cec 2752NM/34 Bugzilla 901: Fix sign/unsigned and UTF mismatches.
7d9f747b 2753 Patch by Serge Demonchaux.
5ca6d115 2754
7d9f747b
PP
2755NM/35 Bugzilla 39: Base64 decode bug fixes.
2756 Patch by Jakob Hirsch.
baee9eee 2757
7d9f747b 2758NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 2759
7d9f747b 2760NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 2761
7d9f747b 2762NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 2763
7d9f747b 2764NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 2765
deafd5b3 2766
47db1125
NM
2767Exim version 4.69
2768-----------------
2769
4b3504d0
TK
2770TK/01 Add preliminary DKIM support. Currently requires a forked version of
2771 ALT-N's libdkim that I have put here:
2772 http://duncanthrax.net/exim-experimental/
2773
2774 Note to Michael Haardt: I had to rename some vars in sieve.c. They
2775 were called 'true' and it seems that C99 defines that as a reserved
2776 keyword to be used with 'bool' variable types. That means you could
2777 not include C99-style headers which use bools without triggering
2778 build errors in sieve.c.
2779
81ea09ca
NM
2780NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
2781 as mailq or other aliases. Changed the --help handling significantly
2782 to do whats expected. exim_usage() emits usage/help information.
2783
f13cddcb
SC
2784SC/01 Added the -bylocaldomain option to eximstats.
2785
7d9f747b 2786NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 2787
7d9f747b 2788NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 2789
7d9f747b 2790NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
2791
2792
eb4c0de6
PH
2793Exim version 4.68
2794-----------------
2795
2796PH/01 Another patch from the Sieve maintainer.
2797
6a3bceb1
PH
2798PH/02 When an IPv6 address is converted to a string for single-key lookup
2799 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
2800 dots are used instead of colons so that keys in lsearch files need not
2801 contain colons. This was done some time before quoting was made available
2802 in lsearch files. However, iplsearch files do require colons in IPv6 keys
2803 (notated using the quote facility) so as to distinguish them from IPv4
2804 keys. This meant that lookups for IP addresses in host lists did not work
2805 for iplsearch lookups.
2806
2807 This has been fixed by arranging for IPv6 addresses to be expressed with
2808 colons if the lookup type is iplsearch. This is not incompatible, because
2809 previously such lookups could never work.
2810
4c04137d 2811 The situation is now rather anomalous, since one *can* have colons in
6a3bceb1
PH
2812 ordinary lsearch keys. However, making the change in all cases is
2813 incompatible and would probably break a number of configurations.
2814
2e30fa9d
TK
2815TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
2816 version.
2817
0806a9c5
MH
2818MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
2819 conversion specification without a maximum field width, thereby enabling
2820 a rogue spamd server to cause a buffer overflow. While nobody in their
2821 right mind would setup Exim to query an untrusted spamd server, an
2822 attacker that gains access to a server running spamd could potentially
2823 exploit this vulnerability to run arbitrary code as the Exim user.
2824
ae276964
TK
2825TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
2826 $primary_hostname instead of what libspf2 thinks the hosts name is.
2827
0f2cbd1b
MH
2828MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
2829 a directory entry by the name of the lookup key. Previously, if a
2830 symlink pointed to a non-existing file or a file in a directory that
2831 Exim lacked permissions to read, a lookup for a key matching that
2832 symlink would fail. Now it is enough that a matching directory entry
2833 exists, symlink or not. (Bugzilla 503.)
2834
2b85bce7
PH
2835PH/03 The body_linecount and body_zerocount variables are now exported in the
2836 local_scan API.
2837
93655c46
PH
2838PH/04 Added the $dnslist_matched variable.
2839
6c512171
PH
2840PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
2841 This means they are set thereafter only if the connection becomes
2842 encrypted.
2843
2844PH/06 Added the client_condition to authenticators so that some can be skipped
2845 by clients under certain conditions.
2846
aa6dc513
PH
2847PH/07 The error message for a badly-placed control=no_multiline_responses left
2848 "_responses" off the end of the name.
2849
a96603a0
PH
2850PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
2851
8f240103
PH
2852PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
2853 (without spaces) instead of just copying the configuration text.
2854
2855PH/10 Added the /noupdate option to the ratelimit ACL condition.
2856
d677b2f2
PH
2857PH/11 Added $max_received_linelength.
2858
d52120f2
PH
2859PH/12 Added +ignore_defer and +include_defer to host lists.
2860
64f2600a
PH
2861PH/13 Installed PCRE version 7.2. This needed some changes because of the new
2862 way in which PCRE > 7.0 is built.
2863
8669f003
PH
2864PH/14 Implemented queue_only_load_latch.
2865
a4dc33a8
PH
2866PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
2867 MAIL command. The effect was to mangle the value on 64-bit systems.
2868
d6a60c0f
PH
2869PH/16 Another patch from the Sieve maintainer.
2870
8f128379
PH
2871PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
2872
8932dffe
PH
2873PH/18 If a system quota error occurred while trying to create the file for
2874 a maildir delivery, the message "Mailbox is full" was not appended to the
2875 bounce if the delivery eventually timed out. Change 4.67/27 below applied
2876 only to a quota excession during the actual writing of the file.
d6a60c0f 2877
ddea74fa 2878PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
2879 characters?) which causes problems in log lines. The DN values are now
2880 passed through string_printing() before being added to log lines.
2881
ddea74fa 2882PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
2883 and InterBase are left for another time.)
2884
ddea74fa
PH
2885PH/21 Added message_body_newlines option.
2886
ce9f225c
PH
2887PH/22 Guard against possible overflow in moan_check_errorcopy().
2888
19897d52
PH
2889PH/23 POSIX allows open() to be a macro; guard against that.
2890
bc64a74d
PH
2891PH/24 If the recipient of an error message contained an @ in the local part
2892 (suitably quoted, of course), incorrect values were put in $domain and
2893 $local_part during the evaluation of errors_copy.
2894
eb4c0de6 2895
b4ed4da0
PH
2896Exim version 4.67
2897-----------------
2898
22ad45c9
MH
2899MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
2900 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
2901 Jan Srzednicki.
2902
b4ed4da0
PH
2903PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
2904 issue a MAIL command.
2905
431b7361
PH
2906PH/02 In an ACL statement such as
2907
2908 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
2909
2910 if a client was not listed at all, or was listed with a value other than
2911 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
2912 the condition was not true (as it should be), so access was not denied.
2913 The bug was that the ! inversion was incorrectly passed on to the second
2914 item. This has been fixed.
2915
2916PH/03 Added additional dnslists conditions == and =& which are different from
2917 = and & when the dns lookup returns more than one IP address.
2918
83da1223
PH
2919PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
2920 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
2921
54fc8428
PH
2922PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
2923 FSYNC, which compiles an option called disable_fsync that allows for
2924 bypassing fsync(). The documentation is heavily laced with warnings.
2925
34c5e8dd
SC
2926SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
2927
bbe15da8
PH
2928PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
2929 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
2930 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
2931 including adding "make clean"; (3) Added -fPIC when compiling the test
2932 dynamically loaded module, to get rid of a warning.
2933
0e8a9471
MH
2934MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
2935 message fails, move_frozen_messages = true and ignore_bounce_errors_after
2936 = 0s. The bug is otherwise harmless.
2937
f0872424
PH
2938PH/07 There was a bug in the dovecot authenticator such that the value of
2939 $auth1 could be overwritten, and so not correctly preserved, after a
2940 successful authentication. This usually meant that the value preserved by
2941 the server_setid option was incorrect.
2942
b01dd148
PH
2943PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
2944
6bf342e1
PH
2945PH/09 Installed PCRE release 7.0.
2946
273f34d0
PH
2947PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
2948 run for batched SMTP input. It is now run at the start of every message
2949 in the batch. While fixing this I discovered that the process information
2950 (output by running exiwhat) was not always getting set for -bs and -bS
2951 input. This is fixed, and it now also says "batched" for BSMTP.
2952
cf8b11a5
PH
2953PH/11 Added control=no_pipelining.
2954
41c7c167
PH
2955PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
2956 patch, slightly modified), and move the expansion of helo_data till after
2957 the connection is made in the smtp transport (so it can use these
2958 values).
2959
9c57cbc0
PH
2960PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
2961
f3f065bb
PH
2962PH/14 Added log_selector = +pid.
2963
047bdd8c
PH
2964PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
2965
0ce9abe6
PH
2966PH/16 Add ${if forany and ${if forall.
2967
0e22dfd1
PH
2968PH/17 Added dsn_from option to vary the From: line in DSNs.
2969
4c590bd1
PH
2970PH/18 Flush SMTP output before performing a callout, unless control =
2971 no_callout_flush is set.
2972
09945f1e
PH
2973PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
2974 was true (the default) a successful delivery failed to delete the retry
2975 item, thus causing premature timeout of the address. The bug is now
2976 fixed.
2977
c51b8e75
PH
2978PH/20 Added hosts_avoid_pipelining to the smtp transport.
2979
e28326d8 2980PH/21 Long custom messages for fakedefer and fakereject are now split up
4c04137d 2981 into multiline responses in the same way that messages for "deny" and
e28326d8
PH
2982 other ACL rejections are.
2983
75b1493f
PH
2984PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
2985 with slight modification.
2986
7c5214ec
PH
2987PH/23 Applied sieve patches from the maintainer "tracking the latest notify
2988 draft, changing the syntax and factoring some duplicate code".
2989
4311097e
PH
2990PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
2991 for deliveries of the second and subsequent messages over the same SMTP
2992 connection.
2993
29f89cad
PH
2994PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
2995 ${reduce, with only minor "tidies".
2996
5e687460
SC
2997SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
2998
c3611384
PH
2999PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
3000 expansion side effects.
3001
5a11a7b4
PH
3002PH/27 When a message times out after an over-quota error from an Exim-imposed
3003 quota, the bounce message says "mailbox is full". This message was not
3004 being given when it was a system quota that was exceeded. It now should
3005 be the same.
3006
0e20aff9
MH
3007MH/03 Made $recipients available in local_scan(). local_scan() already has
3008 better access to the recipient list through recipients_list[], but
3009 $recipients can be useful in postmaster-provided expansion strings.
3010
ca86f471
PH
3011PH/28 The $smtp_command and $smtp_command_argument variables were not correct
3012 in the case of a MAIL command with additional options following the
3013 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
3014 were accidentally chopped off.
3015
a14e5636
PH
3016PH/29 SMTP synchronization checks are implemented when a command is read -
3017 there is a check that no more input is waiting when there shouldn't be
3018 any. However, for some commands, a delay in an ACL can mean that it is
3019 some time before the response is written. In this time, more input might
3020 arrive, invalidly. So now there are extra checks after an ACL has run for
3021 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
3022 pipelining has not been advertised.
3023
ec95d1a6
PH
3024PH/30 MH's patch to allow iscntrl() characters to be list separators.
3025
42855d71
PH
3026PH/31 Unlike :fail:, a custom message specified with :defer: was not being
3027 returned in the SMTP response when smtp_return_error_details was false.
3028 This has been fixed.
3029
57c2c631
PH
3030PH/32 Change the Dovecot authenticator to use read() and write() on the socket
3031 instead of the C I/O that was originally supplied, because problems were
3032 reported on Solaris.
3033
58c01c94
PH
3034PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
3035 Exim which did not show up earlier: it was assuming that a call to
3036 SSL_CTX_set_info_callback() might give an error value. In fact, there is
3037 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
3038 was a macro that became an assignment, so it seemed to work. This has
3039 changed to a proper function call with a void return, hence the compile
3040 error. Exim's code has been fixed.
3041
dee5a20a
PH
3042PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
3043 cpus.
3044
d2ee6114
PH
3045PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
3046
b2d5182b
PH
3047PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
3048
79749a79
PH
3049PH/37 If a message is not accepted after it has had an id assigned (e.g.
3050 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
3051 "Completed" line in the log. When some messages of this type were
3052 selected by exigrep, they were listed as "not completed". Others were
3053 picked up by some special patterns. I have improved the selection
3054 criteria to be more general.
79749a79 3055
c456d9bb
PH
3056PH/38 The host_find_failed option in the manualroute router can now be set
3057 to "ignore", to completely ignore a host whose IP address cannot be
3058 found. If all hosts are ignored, the behaviour is controlled by the new
3059 host_all_ignored option.
3060
cd9868ec
PH
3061PH/39 In a list of hosts for manualroute, if one item (either because of multi-
3062 homing or because of multiple MX records with /mx) generated more than
3063 one IP address, and the following item turned out to be the local host,
3064 all the secondary addresses of the first item were incorrectly removed
3065 from the list, along with the local host and any following hosts (which
3066 is what is supposed to happen).
3067
ebeaf996
PH
3068PH/40 When Exim receives a message, it writes the login name, uid, and gid of
3069 whoever called Exim into the -H file. In the case of the daemon it was
3070 behaving confusingly. When first started, it used values for whoever
3071 started the daemon, but after a SIGHUP it used the Exim user (because it
3072 calls itself on a restart). I have changed the code so that it now always
3073 uses the Exim user.
3074
2679d413
PH
3075PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
3076 message are rejected with the same error (e.g. no authentication or bad
3077 sender address), and a DATA command is nevertheless sent (as can happen
3078 with PIPELINING or a stupid MUA), the error message that was given to the
3079 RCPT commands is included in the rejection of the DATA command. This is
3080 intended to be helpful for MUAs that show only the final error to their
3081 users.
3082
84024b72
PH
3083PH/42 Another patch from the Sieve maintainer.
3084
8005d38e
SC
3085SC/02 Eximstats - Differentiate between permanent and temporary rejects.
3086 Eximstats - Fixed some broken HTML links and added missing column headers
3087 (Jez Hancock).
3088 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
3089 columns for Rejects, Temp Rejects, Ham, and Spam rows.
3090
3298c6c6
SC
3091SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
3092
a43a27c5
PH
3093PH/43 Yet another patch from the Sieve maintainer.
3094
58eb016e 3095PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
3096 the response to the final '.' that terminates a message, but only in the
3097 case where the client has not sent further data following the '.'
3098 (unfortunately, this is allowed). However, in many cases there won't be
3099 any further data because there won't be any more messages to send. A call
3100 to select() can be used: if it shows that the input is "ready", there is
3101 either input waiting, or the socket has been closed. An attempt to read
3102 the next input character can distinguish the two cases. Previously, Exim
58eb016e 3103 would have sent an OK response which the client would never have see.
563b63fa
PH
3104 This could lead to message repetition. This fix should cure that, at
3105 least in a lot of common cases.
58eb016e 3106
b43a74ea
PH
3107PH/45 Do not advertise STARTTLS in response to HELP unless it would be
3108 advertised in response to EHLO.
3109
b4ed4da0 3110
5dd1517f
PH
3111Exim version 4.66
3112-----------------
3113
3114PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
3115 fixed by 4.65/MH/01 (is this a record?) are fixed:
3116
3117 (i) An empty string was always treated as zero by the numeric comparison
3118 operators. This behaviour has been restored.
3119
3120 (ii) It is documented that the numeric comparison operators always treat
3121 their arguments as decimal numbers. This was broken in that numbers
3122 starting with 0 were being interpreted as octal.
3123
3124 While fixing these problems I realized that there was another issue that
3125 hadn't been noticed. Values of message_size_limit (both the global option
3126 and the transport option) were treated as octal if they started with 0.
3127 The documentation was vague. These values are now always treated as
3128 decimal, and I will make that clear in the documentation.
3129
3130
93cfa765
TK
3131Exim version 4.65
3132-----------------
3133
3134TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
3135 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
3136 versions. (#438)
3137
d6066548
MH
3138MH/01 Don't check that the operands of numeric comparison operators are
3139 integers when their expansion is in "skipping" mode (fixes bug
3140 introduced by 4.64-PH/07).
3141
4362ff0d
PH
3142PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
3143 child addresses, Exim now panics and dies. Previously, because the count
3144 is held in a short int, deliveries were likely to be lost. As such a
3145 large number of recipients for a single message is ridiculous
3146 (performance will be very, very poor), I have chosen to impose a limit
3147 rather than extend the field.
3148
93cfa765 3149
944e9e9c
TF
3150Exim version 4.64
3151-----------------
aa41d2de 3152
21d74bd9
TK
3153TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
3154 leftover -K file (the existence of which was triggered by #402).
3155 While we were at it, introduced process PID as part of the -K
3156 filename. This should rule out race conditions when creating
3157 these files.
3158
3159TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
3160 processing considerably. Previous code took too long for large mails,
3161 triggering a timeout which in turn triggers #401.
3162
3163TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
3164 in the DK code in transports.c. sendfile() is not really portable,
3165 hence the _LINUX specificness.
944e9e9c
TF
3166
3167TF/01 In the add_headers option to the mail command in an Exim filter,
3168 there was a bug that Exim would claim a syntax error in any
3169 header after the first one which had an odd number of characters
3170 in the field name.
3171
2b1c6e3a
PH
3172PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
3173 callout verification, Exim cached a "reject" for the entire domain. This
3174 is correct for most verifications, but it is not correct for a recipient
3175 verification with use_sender or use_postmaster set, because in that case
3176 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
3177 case of MAIL FROM:<> rejection from other early rejections (e.g.
3178 rejection of HELO). When verifying a recipient using a non-null MAIL
3179 address, the cache is ignored if it shows MAIL FROM:<> rejection.
3180 Whatever the result of the callout, the value of the domain cache is
3181 left unchanged (for any other kind of callout, getting as far as trying
3182 RCPT means that the domain itself is ok).
3183
1f872c80
PH
3184PH/02 Tidied a number of unused variable and signed/unsigned warnings that
3185 gcc 4.1.1 threw up.
3186
3187PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
3188 manifest itself as EPIPE rather than ECONNECT. When tidying away a
3189 session, the daemon ignores ECONNECT errors and logs others; it now
3190 ignores EPIPE as well.
3191
d203e649
PH
3192PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
3193 (quoted-printable decoding).
3194
cc2ed8f7 3195PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 3196 later the small subsequent patch to fix an introduced bug.
f951fd57 3197
ddfcd446
PH
3198PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
3199
d45b1de8
PH
3200PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
3201
3202PH/08 An error is now given if message_size_limit is specified negative.
3203
38a0a95f 3204PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 3205 to be given (somewhat) arbitrary names.
38a0a95f 3206
a2405d83
JJ
3207JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
3208 in 4.64-PH/09.
3209
3210JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
3211 miscellaneous code fixes
3212
6ea85e9a
PH
3213PH/10 Added the log_reject_target ACL modifier to specify where to log
3214 rejections.
3215
26da7e20
PH
3216PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
3217 hostname. This is wrong, because it relates to the incoming message (and
3218 probably the interface on which it is arriving) and not to the outgoing
3219 callout (which could be using a different interface). This has been
3220 changed to use the value of the helo_data option from the smtp transport
3221 instead - this is what is used when a message is actually being sent. If
3222 there is no remote transport (possible with a router that sets up host
3223 addresses), $smtp_active_hostname is used.
6ea85e9a 3224
14aa5a05 3225PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 3226 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
3227 (a) The code assumed that strncpy() returns a negative number on buffer
3228 overflow, which isn't the case. Replaced with Exim's string_format()
3229 function.
3230 (b) There were several signed/unsigned issues. I just did the minimum
3231 hacking in of casts. There is scope for a larger refactoring.
3232 (c) The code used strcasecmp() which is not a standard C function.
3233 Replaced with Exim's strcmpic() function.
3234 (d) The code set only $1; it now sets $auth1 as well.
3235 (e) A s